good ways to rig coins

Idk what you're talking about/asking here. Please elaborate.

I still don’t understand.

Basically, he's asking if anyone knows of good ways to use triggers and effects on user coins to make them harder to get in levels instead of just putting them somewhere easy (for example, some levels will pretend to drop a coin in front of you but have a move trigger pull it out of reach so you have to find it later).