Coin Sorter Tray Box

This is a tray holder for [Coin Sorter and Counting/Wrapping Tubes](https://www.thingiverse.com/thing:1043191) by [msmith258](https://www.thingiverse.com/msmith358/about). These trays did not lock together very well for me and it was hard to keep them in place while shaking, so I made this tray lock to ensure they wouldn't move.