Cupboard door knobs with screw holeVersion 2 should be fine for printing, and has a curved top. Version 3 should also print fine, is more customisable (i.e. height can also be adjusted), but has a flat top. The flat top should look good without additional post-cleaning on layered 3D printers (which suffer from quantisation with small angles). The flat handle is a request from my aunt and uncle, who were having trouble finding an art-deco cupboard handle.