With the various cords attached to the MK4 as it sits in the Prusa enclosure cleaning the inevitable bits of filament up is difficult.  I designed these hooks to attach to the top of the enclosure and provide a temporary place to hang the printer.

The hooks attach using a zip tie, such as those left over from building a Prusa printer or enclosure.

I printed my hooks in PETG, using Prusa Structural settings, using 4 walls and 25% infill.  They print without supports when placed in the correct orientation - be sure to use the orientation pictured for optimal strength.  They seem plenty strong, certainly stronger than the zip ties that hold them.