Yet another bowl but my first.
Just the thing to give to Buckminster Fuller fans or to pass the nuts at the next hacker muster.
http://en.wikipedia.org/wiki/Buckminster_Fuller

This is challenging because of the angles at the bottom.
The normal bowl (buckybowl.stl) needs support.
The three taller variants should print without support.
The photos above were of a print done in clear ABS at .4mm slices.