Check out ambisweetiepie (https://www.deviantart.com/ambisweetiepie)'s Etsy Shop! She has made keychains for Pokemon, Adventure Time, Katamari Damacy, Evangelion, tea + coffee lovers, and more! I have the president Aria one. (Gold stars to anyone who has read the Aqua and Aria manga. If you're ever looking for a slice-of-life manga that takes place in a sci-fi revision of Venice, then look no further.)
They really are quite cute and well-made. Please support her by stopping by her shop! :)
PS: I've also recently discovered the wonderful world of blue Col-erase Pencils. Holy crap you guys. I can draw on paper like how I draw in Photoshop. It's like MAGIC.