Need help with my bf's DnD themed birthday present <3

I'm trying to gift him something DnD related. I've already bought a set of dice and crocheted a bag for them but I feel like it's not enough. I wanted to draw stickers so he could decorate his belongings but I don't have many ideas aside from d20 dice stickers and I barely know anything abt the lore. Any ideas would help me a lot! 🩷