Tangledtarts

Hello, I am new to making wax melts. I understand we are supposed to store them in polypropylene containers but does anyone have any easier space saving ideas? I am currently preparing for a festival at the end of this month and I have used all of the available Tupperware that I own and have not finished making stock for the festival. Buying more isn't the issue I am just wondering if anyone has tried and true storage methods that don't require a ton of storage containers and that doesn't cause any loss of scent.