Recently i got an idea, i have absolutely no idea of how feasable the material is but... what are the possibilities to create heat resistant silicon models. This would make it possible to design custom shaped cupcake and pie molds. A few examples of just mass produced shapes: I would love to be able to make custom shaped cupcake molds, they would also make great gifts.
It may be more cost effective, if you print the cookie design, than find a heat resistant silicon reason to make the mold with. Or you could make a ceramic dish. Not as much detail, but it is food save and heat resistant up to 500 C or 932 F
A while back, Tristan Bethe made a Shoeburger using a mould made from a 3D printed model using a foodsafe silicone, more on Shapeways Blog at Ready to Eat: 3D Printed Shoe Burger
haha that looks awesome, Though creating those molds from 3d printed shapes seems kind of difficult to pull off for someone with 2 left hands