We saw a dare where a girl put a spoon in her pussy (here) and my wife thought she could one up that. These pictures are her dare or proof and a challenge to everyone else to see if they can one up us.
Each token is about 5-10 cents and you can tip 1 or as many as you like. Every token amount has an effect of some kind on the performers."
The tokens vibrates the toy remotely which is usually already inside the woman. So your 5 cents makes her shiver. After awhile, she does something extra (sexy) special ...