So in my Nexstar 5'', the eyepiece tray has two slots for 2'' eyepieces. I don't use any 2'' eyepieces, but worse than that - when it's dark, it's very easy to place the eyepiece in the wrong hole, and watch it (or rather, hear it) falling 4 feet to the ground.
I give you my solution:
3d modeled in Fusion360 and printed with Prusa mk3.
STL file is attached for your use.
Edited by razidan, 10 April 2020 - 12:09 PM.