Do you have an incredible toy idea you've always dreamed of making? What about building something cool with all those extra Legos and K'Nex?

Now's your chance! You may design a toy out of whatever material you desire or use existing toys to make a new toy! To enter the Toy Challenge, create an original photo, video or step-by-step Instructable of your toy creation or toy modification to win a 3D printer from MakerBot!

K'nex used as weapons are not allowed in this contest. No K'nex guns, bombs, shooters or other K'nex weapons. 

Ready to start? Click here!

Multiple entries are accepted, but each entrant can only win one prize. Contest is open to international entries. Contest closes for entries at 11:59pm PDT, July 4.

The Toy Challenge is closed.

Grand Prize

6 Prizes

Grand Prize (1 winner)

1 MakerBot Thing O Matic 3D Printer and an Instructables Prize Pack

First Prize (1 winner)

1 Lego Mindstorm NXT 2.0 and an Instructables Prize Pack

Runner-Up (4 winners)

Each winner will recieve an Emotigraph along with a Sugru and Instructables Prize Pack!
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 Jun 6, 2011 and Jul 4, 2011 (11:59pm PT).


Upon publishing your Instructable you'll see checkboxes for open contests. Select Toy Challenge. 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.