If you have the Balanced Dice (http://www.thingiverse.com/thing:147883), you may need this set of dices.
It's a hollow dice with a solid semisphere in one of the inner faces making it unbalanced.
Sightly increases the probabilities to obtain the 'cheated' number.
I've included 6 dices (cheated for every number)
Also included the 123D-Desing file.
Recommended a infill of 90 or 100% in order to get more weight at cheated size.
Supports doesn't matter but recomended to avoid problems printing the top face. Supports will be inside dice and you won't be able to peel off, but doesn't matter.
Tested with PLA at 0.2 resolution.