D12 Polyhedral

There are several printable polyhedral dice on Thingiverse, but the only full set:

http://www.thingiverse.com/thing:30421

Has very rounded corners that I'm not fond of, since they take too long to stop rolling and don't have the nostalgia value of sharp edged dice for me.

Most of the sharp edged dice on Thingiverse don't have the numbers engraved and are really just platonic solids or use non-standard designs.

There already is a sharp D12: http://www.thingiverse.com/thing:550

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