Custom Minion Skin Suggestions?

Hello, I am working on my Skyblock server right now and I'm adding in a lot of custom minion skins. Can you guys suggest some notable characters for me to add? So far we have: Spiderman, Batman, Thanos, a devil, Sonic, Master Chief, Ash Ketchum, an Orc, and Mario. I'm going for easily recognizable characters that most players would have already seen before. Thanks

Edit: For context, they're just small creatures that mine blocks for players and other stuff