Okay, hear me out.
imagine a Domi where the lights around the neck show what level someone tipped for, or the lights play a pattern when someone tips for a pattern. A dolce with just 3-5 lights up the back side that show what level its playing, maybe goes up and down with the patterns. this is just an idea i had. it would be nice for the tippers to be able to see what exactly the toy is set at based on tips and it could make the patterns more popular.