Modular hexagaonal design that push fits together, I added the 3 pin locks to stabilise the racks once multples are added. they do require some fouce to lock them once you connect on more than 2 faces. Designed to be used with Aldi or lidl luxury glass yogurt pots with pop on lids. I chose them as the lids are easy to remove but stops the water evaporating.

needs to be printed as a structural part, prints without support, but can use tree support if you like