We had one litter scoop from IKEA which is perfect for the clumping litter we use. It falls through without barely any shaking required. Unfortunately they seemed to have stopped selling it here, and none of the others we have or could find in store or for printing come close. So I designed this to be very similar.

It works great, but similar to the one I modelled it after you may have issues picking up very small drops. We just use the sides or a second small scoop for those.

It fits on the bed of the Prusa MK4. The Fusion 360 file is included and the first sketch can easily be modified to shrink the handle if required.

Banana on the photo is metric.