We've officially launched a contest on Instructables called Make it Real-ly Scary with 123D!
The contest runs through the end of October and is open call for people to use any of the 123D apps as a component to their Halloween project. It can be as simple as remixing another user's model or as time-consuming as laser-cutting a giant Cthulhu that terrorizes the kitchen at the Autodesk offices.
We have some pretty great prizes too! Our friends at Zebra Imaging and iMaterialise are the Prize Providers for the contest and have forked over some pretty righteous goods. Grand prize is a HUGE hologram (24"x34") from Zebra Imaging, $100 print credit with iMaterialise, and a 2-year Premium membership to 123D! Zebra hasn't offered this size hologram directly to our users before, so we're excited to see one.