Gundam birthday party ideas?

I’m in my thirties and I want to throw myself a UC Gundam themed birthday party because I’m an adult and I can. Looking for any and all ideas for decorations, food, activities, whatever, that wouldn’t be doable to build or buy in the next month.

Right now the only ideas I’ve got are some kind of themed drinks (White Base Russian or Red Comet Vodka Cran anyone?) and a rousing game of Pin the Sunglasses on the Quattro, but not sure what to do for decorations since Gundam isn’t exactly something you can buy a kids party pack of banners for.