The Great WunderBar Holiday Challenge

with Relayr
Win a fantastic gift for the holidays
The Great WunderBar Holiday Challenge
The Great WunderBar Holiday Challenge
This contest is over! See all the winning entries. Want more chances to win prizes? Check out our active contests.



Did I win the contest? When will I receive my prize?

If you are a winner, we will contact you directly via email to arrange the shipment of your prize.

I submitted my project but it says "Awaiting moderation". Will it affect my eligibility?
As long as you submit your project before the deadline it doesn't matter when it is moderated. Just sit back and enjoy a well deserved break!
My project is locked and I can't edit it anymore. Why is that?
All projects entered in the contest are locked after the submission deadline to ensure that they remain the same during the judging process. They are then unlocked after winners are announced.
Somebody copied my entry! What can I do?
When judging entries, we take into account the submission date. When an entry is clearly plagiarized from another, we favor the original entry. If you believe the result of the judging is unfair, please email us at to appeal.
What are the entry requirements?
  • You must post a complete project including code, images and documentation
  • You must use a WunderBar in your project
What are the judging criteria?

We’ll be looking for innovative solutions for solving everyday problems using the WunderBar. Don't worry, we don't need your entry to be seasonally themed (unless you decide that it should be). A video of the project would be a bonus (though it is not a requirement)

Your project has to be open source and should be as well documented as possible.

What are the prizes?
Best project
  • Either an iPhone 6, Nexus 6, PS4, or 48" TV
What are the steps to enter the contest?

Post your completed WunderBar project on our competition page at

What is the contest timeline?

Winners announced:

December 31, 1969

Contest begins:

October 22, 2014 at 9:59 PM PT

Submissions close:

December 21, 2014 at 8:59 PM PT

When will winners be announced? Where can I see the list?

Contest winners will be announced on December 31, 1969. The list of winners will be visible on the main page (Contest brief).

Who is eligible to participate?

Anyone with a WunderBar (who isn't a member of the relayr team or one of their family members) is welcome to enter. The competition is global. 

Couldn't find an answer to your question? Email us.