a tin can ashtray (for Feierabendbier :-) )

a more usable than pretty thing.... as you can see yourself

the lid normally fits on almost every 0.33ltr or 0.5ltr tin can with an
outer diameter of 67mm (see also wikipedia: https://en.wikipedia.org/wiki/Drink_can )

uncritical print : no supports, no special layer heights,... needed
I normally do they with 0.2mm layer and 33% infill

( the object are *not* manifold, but they print ok with slic3r.
the non-manifold-state comes from the components of sketchup,
which all are manifold