What do I get my boyfriend?

Hi! I’m getting ready for Christmas and I want to get my boyfriend an art related gift since he’s so creative. He really likes making miniatures so I was hoping to find something related to that. It feels like he basically has everything. Is there anything I can get him that you always need more of? Or something that is on the nicer side or especially fun? Any help or ideas are appreciated. I’m out of my depth.