Awe alert! This Pikachu Balloon has got to be the cutest fold I’ve done to date. I used a Post-It-Note for paper and, fine black and red markers for the details.
You can find the easy instructions here: http://www.nonfictiongaming.com/2016/05/create-origami-pikachu-post-note/
A drawback to using Post-It-Notes is the stickiness on one side–duh! This adds a bit of challenge to the folding process.