The second one to be cashed in was part of Exile #4's Christmas raffle winnings. It was lunchtime and appropriately enough for Pi Day (in US date form today was 3/14/15 even more pi than March 14th usually is!), we had a pizza pie:
After that we used the other part of her prize to go bowling, after which we were ready for dinner, and some more pie!
But before all that, E5N1 spent his winnings from being the No Cavity Club winner at the dentist on an excellent engineering kit that makes six different "kinetic machines". Here is number one in action, launching a ball (surface area 4.pi.r.r, volume 4/3.pi.r.r.r) into the air (if not actually the sky):
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