I designed this is simplest way as could be created, but including some features like:

-replaceable handle (Thread M20x2x9mm)

-replaceable top pad (Screw M20x2x10mm)

-replacable bottom pad (Come back here later because there will be more to froms to choose!)

-easy to use as is designed from 4 parts, no more stubbornly extracting meat from the depths of the form, as top botom and base cylinder are separated parts

-easy to clean - only open surfaces which you can easily clean

-designed small hole inside screw, thanks to the slicer's interpretation as empty space, an additional wall layers inside screw and longer than it makes it more strong!

-Every part is replacable in same sizes, and if you want to print another, like 80 or 140mm variant, you can use the same handle, just different cylinder piston and bottom panel (I will add them soon)