I needed something to help store a number of tea lights I bought after a recent power outage. So I hopped on TinkerCAD and put together this design. Each tray you print can hold 8 tea lights, and the trays will snap together in order to store more tea lights.

No supports required since the model includes it's own supports.

TinkerCAD: https://www.tinkercad.com/things/3xmKIDvVnKK