My son loves pi. The number. He and a friend at school have actual arguments about who has memorized and/or written down the most digits of pi. The other day he designed and printed a pi in Tinkercad from scratch to give to his friend; I love the little bend he put into the leg! Tonight I printed a couple more for him from 2ROBOTGUY's Pi Thingiverse design as a surprise. :)
Tinkercad link: <<coming soon, Tinkercad is down tonight>> (black model from CGR)
Thingiverse link: http://www.thingiverse.com/thing:3818 (blue model)
Settings: MakerWare .3mm/low in about 7-8 minutes per pi.