If you're looking for a simple, casual bodysuit...or just neeeed a piece of clothing that's exactly the same as Barbie wore :), consider the Oh Me Oh My from Free People. It's done in a soft, lightweight knit blend* fabric that happens to be machine-washable (score!) and has a versatile classic silhouette. Caveat:  the deep-v will likely require an under-layer to be professional-situation appropriate, so bear that in mind when determining sizing. The best part of this piece is that it comes in a multitude of gorge colors - not only the olive tone worn by Barbie, but also lilac, rose, wine, even a cool black and white stripe. Layer it under a sheer shirt with cropped denim right now and under a bomber or faux fur coat come winter.
*I love the softness of rayon - it's hard to beat it for comfort. As a rule though, I gravitate more toward natural fabrics over synthetics or semi-synthetics like this.

 If you saw Maryse's double buckle belt and decided immediately that you need one of those, I've ttly got ya covered on that! I felt the need to do some ..umm...er..."research" (just looking...honestly ;)) myself after seeing it and I'm sharing the fruits of said efforts. But really, how could I not have to have a belt that practically shares my name..twice? *innocent blink*
I don't a have a pic that shows the deets clearly enough to be 100% certain, but the Bri Bri (#1)  from B-Low The Belt (a brand I looooove - don't get me started on the Moto Corset  or Ramona Velvet belts!) would def be in the top picks as an exact. The Western detailing give it beauty and outfit-maker vibes and it's available in both black and silver. For a similar with a more equestrian vibe, check out the Blake Double. For a narrower (and slightly less pricey option try the Baby Bri Bri (#4), also available in either metal tone). All of the above mentioned pieces can be found here at shopbop.
If you're scheming to get one in a different shade, head directly to the brand's website and check out the petal and silver (#3)or bone and gold variations.
Feeling a bit more square? Try the Leatherock (#5) iteration at Zappos.
I fell in love with the whipstitch edging on the Rebecca Minkoff piece  (#2) - get it in white to match your Kendall-inspired boots, or go with more versatile black or brown).
Edited chic always catches my eye, too, making this slim, sleek variation from Brooks Brothers (#8) an immediate hit in my book. It's available in tan, as well as black.
If you neeeeed one of these, but also need groceries and gas in your car, consider the options from Amsterdam Heritage(#7), Topshop (#9) or Accessory Collective (#6)
1. Bri Bri Double Buckle Belt
2. Rebecca Minkoff Whipstitched Double Buckle Belt
3. Bri Bri Double Buckle Belt - variant colors
4. Baby Bri Bri Double Buckle Belt
5. Leatherock 1689 at Zappos.com
6. Accessory Collective Double Buckle Faux Leather Belt
7. Amsterdam Heritage Double Buckle Belt
8. Brooks Brothers Leather Two Buckle Belt
9.Topshop Western Belt

If you took one look at Summer's impeccably cool ankle booties and went head-over-heels, I can totally join your tumble. These urban-cowboy-esque heeled lovelies are Jeffrey Campbell's Cromwell, a classic Western-themed ankle bootie that gets a boost of unfussy modernity from its deep side slits. If that wasn't enough fun, there's a hint of flash from the metallic accents at the toe and heel. The gritty fierceness is married with the practicality of a low block heel, turning them into a pair that's wearable from festival season through fall pumpkin fetes and even on into winter.  They're offered in plain black leather, as well as black or blush suede, python,  taupe velvet or taupe suede (all at Nordstrom) (black & taupe suede also at Shopbop).

If you are head-over-chunky-heels for Barbie's peep-toe OTK booties, you are in luck bigly. They are the Galle boot by Guess.  They are done in both the black (as modeled by Barbie) and a lighter (i.e. perfect for summer) gray. Add a massive dose of fierce luxe to knit dresses, cotton a-line pieces, mini skirts and shorts all through summer and then keep on with denim or leggings right into the autumn :) The Galle can be had here at 6pm.com...and they won't even hurt your piggy bank too much - bonus! :)

If burgundy over the knee boots have been haunting your dreams like the ghosts of Christmas past, we totally hear you! They're not overly practical, but they are crave-worthy and gorgeous...and one of the hottest trends of the season, as attested to by Mandy, Maryse and Barbie, to name a few :). All those ladies tend to head right for the traded-my-home-for-these styles, but there are some fab pieces out there that don't require living under an umbrella.  Here's a few options we found that might help the haunting cease :)
1. Quikstep by Nine West, a slightly shorter variation. Via 6pm.
2. Velvet OTK by Unisa Saranaa via DSW
3. Velvet OTK by Catherine Malandrino via Nordstrom Rack
4. Rumer by Carlos Santana from Famous Footwear
5. Gunter by Charles by Charles David, if flats are your jazz. Via 6pm.

If you're looking for a holiday or New Year's outfit, Renee's fabulous Belle Epoch Free People dress is in stock at Free People..and it's not a budget-buster. Score, right?! Done in the season's hottest fabric - velvet - and a fantastic slipdress silhouette that's spot on the current 90's trend, this dress is both on point and beautiful! You can choose Renee's burgundy shade, or a magnificent deep green, as well as classic neutrals like black or gray. Style it her way - with booties - or block-heeled ankle strap pumps.

Brie has fab style - definitely the kind you want to snag a bit of now and again. This Maje shirtdress is a perfect combo of grunge and chic. I'm loving the bright blue tones and the tie waist! It's a great look for school, a casual restaurant, girl time, even a chill date night. So, let's say you want to appropriate Brie's look for the day. There are several ways you could do it:
Literally: her exact dress is available at the Maje website here. Her shoe choice is the Louboutin Berlinissimo bootie which is sold out at major stores, but might be available through places Poshmark. To make matters easier, you could go with the newer Cajaboot, a platform-less variation with a similar vibe. At least, you can do that if you're willing and able to spend four figures on an outfit :).  If not, there are - fortunately :) - other options. You can also steal her look
Similarly: if you don't mind foregoing the blue, this plaid, tie-front shirtdress from BB Dakota might fit your bill. It's got the same casual, carefree vibe as Brie's. And, it won't require you to pawn anything you value :). If you neeeeeeed blue plaid in your life, but can compromise on the tie-front (or add your own belt/scarf to recreate the effect), consider this mini dess from Eleven Paris. It gives you all the great color at a much more palatable price point. Then again, maybe the black-and-blue plaid and tie-front combo is your hearts' desire and you just can't let go. In that case, you might be able to steal Brie's style
Alternatively:  This English Factory blue plaid buttondown echoes all the essential elements of Brie's dress, just in a top. Pairing it with a black A-line skirt - or leggings/skinny jeans if you're happy to stretch even a bit further afield - will give you the feel of Brie's look, but let you make it your own.
After you've picked your main piece(s), you'll need to finish the outfit with a pair of cage booties. And there are a ton of great options to consider:
The Report Alden
The Seychelles Drum Kit
The Steve Madden Cyder
The Dolce Vita Tinlie
The Nina Cypress
The Dune London Meeli
The Guess Anasia
The final step: enjoy feeling fabulous..in the most Brie-eque way!