Emilehomemade expanded on the minion cupcakes with some other food ideas right out of the movie. She also has great ideas for invitations, decor. and games. I really LOVE her idea for the minion bowling game that you can see here
Obsessively Stitching show how you can make minion wall deocr and T Shirts. Even if you dont have a party these would be fun crafts to do with your children. You see her blog here .
Minion Twinkie Cakes by Nicole from The Party Animal. She has a very detailed tutorial that you must check out here. I think I might make these just because even though we are not personally having a Despicable Me party. (I am still trying to talk my very soon to be 12 yr old to do SOMETHING instead of just plain old chocolate cupcakes.. LOL!)
This theme would be great for kids of all ages.