Found this plan, print it and found there was some room for improvement, so I made my own one base on the general idea of it. The main improvement is that you can place this tray in the hole in the middle of the original part of the Cricut Maker 3 and it still allow you to open the storage where your stuff are. The previous one was blocking it.

The idea is to extend the support part of the mate for the Cricut to allow you to use bigger print mate.

If you take the STL file, you can print one as it is, and print a second one with a mirror operation on the Z-Axis.

Otherwise if you have a Prusa MK3S, you can simply take the GCODE file, where you find them both.

If you print it, and it works for you, please rate it and post a make, that would be highly appreciated!