Nipple Play Ideas for Pleasure (Not Pain) Male Nipple Play

I’m looking for more ideas for nipple play. I don’t like pain. As of now, I rub my nipples my my bare fingers, or I rub them through a thin soft fabric. I’ve used ice before. I’ve also used toothbrush and stuff for different textures and feels.

Anybody’s got more ideas?

I’m a male. So I’ve heard our nipples aren’t as sensitive as the female’s. But I love nipple play and I get know more ideas.