In you case you all didn't already know, there is a Construct 2 only game jam that started today. It's a 6 day jam, so you have plenty of time to get in your projects.
There are some good prizes like C2 licenses and Spriter licenses.
You can get all the info here:
http://jams.gamejolt.io/construct2coin-op
PS. I know this was already posted in the forums, but thought it might have a little more visibility here.