This is a challenge to use 123D suite of apps or Tinkercad to make your scariest Halloween project into reality. Model a creep in 123D Creature, then make a cardboard mold with123D Make. Design a shaking coffin mechanism in 123D Design or Tinkercad, or even put your head on a spider body with 123D Catch and Mesh Mixer! Anything goes, just use any of the 123D apps as a part of your Halloween project.

Multiple entries are accepted, but each entrant can only win one prize. Contest is open to entries from US, Canada [excluding Quebec], UK, China, Belgium, the Netherlands, Australia, Colombia, Germany, Switzerland, Norway, India, New Zealand, and Denmark. The Contest begins at 12:00 a.m. Pacific Standard Time (PT), October 7, 2013. Contest closes for entries at 11:59pm PT, November 4, 2013.

The winner(s) will be solely responsible for complying with any and all applicable statutes, laws (including, without limitation, common law, if applicable), rules and regulations and for bearing any personal income tax, VAT, withholding taxes, customs duties, or other taxes, fees, insurance, surcharges or other costs relating to receiving, claiming or collecting any prize.

Want more contests? Check out Instructables' upcoming contests here!

The Make it Real-ly Scary with 123D and Tinkercad Contest is closed.

Grand Prize

10 Prizes

Grand Prize (1)

One Grand Prize winner will receive:

First Prize (3)

Three First Prize winners will receive:

Runner Up Prize (6)

Six Runner Up winners will receive:
  • a coupon code for 20% off an iMaterialise 3D print
  • a 123D prize pack including a t-shirt and 1 Month Premium Membership
  • and an Instructables prize pack including a robot t-shirt.
How It Works

Write an Instructable

Create a new Instructable that fits the guidelines outlined in the contest description above. To be eligible, Instructables must be published between Oct 7, 2013 and Nov 4, 2013 (11:59pm PT).


Upon publishing your Instructable you'll see checkboxes for open contests. Select Make it Real-ly Scary with 123D and Tinkercad Contest. If you have entries currently eligible for entry, it will also show up by clicking "Enter this Contest" on the right side of this page.


Entries are accepted by Instructables staff within one business day Monday - Friday. What matters is the submission time, not acceptance time.


A panel of judges made up of Instructables staff and respected members of the community rate the finalists. The averages of the ratings determine the winners.


When the winners are decided they will be notified and announced here on the contest page.