Here are my kids wearing their Despicable Me, Minion costumes that I made from the blue camping mat foam, fiberglass domes for the head, ABS pipe fittings for the goggles, and vacformed eyeballs. I sewed the jumpers from three xtra large shirts at $5 bucks each from Walmart. The hair is made from black craft foam that I superglued on the domes.
Here is their YouTube clip.
Thanks for looking!