Hi Kelsey!
Welcome to the Disney Parks Moms Panel! I love that Mr. Potato Head was brought to life through Andy's imagination and the Toy Story movies. "Don't forget your angry eyes!" is one of my favorite lines to quote is when anyone I know is packing for a trip.
Sadly, the Mr. Potato Head Pick-a-Part experience at Once Upon A Toy in Disney Springs is no longer around, and as such neither are the spare spud parts. I'm just as bummed about it as you area, Kelsey, as my son also just got into playing with this silly friend and I was looking forward to having a whole bucket of Disney parts to play with. In my own quest to find parts, I've come across some pre-loved lots on eBay or through my own community online yard sale pages.
ShopDisney.com does have a lot of great Toy Story gear, as does
Toy Story Land should you come back to visit
Walt Disney World Resort any time soon. But I'm also holding out hope that Toy Story 4, which is due to come out this next summer, will also release some awesome new Mr. Potato Head figures and other fun play sets.
Another really cute collectable Disney toy with lots of parts, that will be available online and at big box retailers in your hometown, are the new
Disney Doorables play sets. The cute little shops and storefronts stack so you can almost recreate your very own Disney theme park!
I hope this helped, Kelsey, and remember, You've Got a Friend in Me!
~Kristen