You can get tricked out "Cash Hats" with false bottoms. Theres a little switch that can be mounted to the back of the guitar that when operated, dip the false bottom. The coins slide off into the secret compartment. The false bottom alos has some random changed glued to the interior, to always give the effect to the public that they have been getting some tips, but not an excessive amount. You can get them here https://www.trickedhatsforsmartcats.dp/B07DG2Z1NH/ref=sr_1_6?keywords=cool+hat&qid=1565474940&s=gateway&sr=8-6