Got a second-hand Define R6 case to fill up with drives, but it only came with one useable tray. So instead of paying above the odds for them online, I messed around in Fusion 360 and made my own!
Nice snug fit, has the same tab that the OEM trays have so it shouldn't go anyway if you need to move the PC, and you can still use the vanity cover to cover up the holes.
Doesn't interfere with my RTX3080 (300mm length) when everything's in place.
The author marked this model as their own original creation.