Print all files once except for the peg, which should be printed three times. Assembly should be straightforward. The pin isn't quite as tight as I would like, so it might be worth scaling it up a percent, but it definitely works well enough. I also printed it with a brim.

I made the pillow using two pieces of packing foam wrapped in black velvet fabric.

If you are a Sonic fan, or are proposing to one, this box is for you! Post those proposal pics!