My original plan was to draw on them and then paint them with some kinda pirate/ninja design
After a while I decided they might turn out looking more professional if I just did some collage over top of them.
Glue stick/Mod Podge
I put them above the bed with contact strips. It's still really plain and boring, but I hope to add a few more items to curate a nice little collection to have a display above the bed.
More importantly, it all only cost me about $5!