baby shower gift ideas?

A🎀 • 24.
I'm a college kid, definetly on a budget right now but my brother and his fiancé are throwing a baby shower and I want to know what I should get. I want it to be something unique. They have a baby registry but I don't know if I'll have time to get something off of that, or if I do it'll definetly be last minute. Any ideas?