Stackable Storage Box Accessories

Featuring my accessories to the Stackable Storage Boxes https://www.thingiverse.com/thing:7105629

- The carrier is an adapter and can hold two boxes printed at scale 0.5 on another box.
- The base parts are basically the same but without the adapter at the bottom. You can tie your stacks of boxes into 2x1, 3x1 or 4x1 patterns to move them around more easily.