the "Hobbes" from calvin and hobbes comics? :D
Here's a start for you.
Got it! The image below is a papercraft, made from a modification of this template according to these instructions. OK, so it's paper, but you can cut it out of fabric and sew it together, can't you?
This is a DIY-site, which to be blunt means "Do It Yourself" and show us how you did it. If it's been done already it will be here: https://www.instructables.com/tag/?sort=none&limit%3Atype%3Aid=on&limit%3Atype%3Acomment=on&limit%3Atype%3Auser=on&limit%3Atype%3Agroup=on&limit%3Atype%3AforumTopic=on&limit%3Atype%3AforumComment=on&limit%3Atype%3Aquestion=on&q=calvin+hobbes so I think you should make this L