We did this a couple of weeks ago in DTD. Before we left home I bought our DS a Mr. Potato Head $5 at
Walmart and our DS a Mrs. Potato Head, also $5. At Once Upon a Toy (I think that is the right name of the store) It has a giant Mr. Potato Head out front and has lots of toys from yesteryear inside, Lincoln Logs, Tinker Toys, etc. You can fill a box with as many parts as you can get inside for $18. Had read on this board to fit smaller hats and parts inside bigger ones. This is what we got - Mickey Safari hat, Minnie Safari Hat, Top Hat, Wedding Veil Hat, Sorcerer Hat, Goofy ears Hat, Princess Minnie Hat, Mickey Ears Hat, Minnies Bow Hat, Flower to add to Minnie Safari Hat, 4 arms (2 left, 2 right), 2 Mickey ice cream bars, 2 Mickey autograph books, 2 Mickey balloons, mustache, 2 sets of eyes, some glasses, Buzz light year laser gun, I know I am forgetting a few things.....but we got lots of parts to dress up two potato heads many different ways. The box is kind of like a Happy Meal box not quiet as wide but a little taller, as long as it closes you get everything inside for $18. Put small stuff inside bigger things, we didn't get any extra feet although they did have some cute ones, they just took up lots of room and the kids were more into all the different hats etc.