About the cash box thing....you can put "To make a money donation please call 555-555-5555 (your number)..Your donation is greatly appreciated!" or you can put please take money donations to Front desk (you can ask someone such as the person at the front desk to keep it there, but ask the manager first. Hope this helped!!!!! Good luck...i tried this before ,but my mom said i should wait till im older (im 14) So maybe ill try again soon!