As someone who frequently goes to the forums and searches for ideas for CoRE I thought it might be a good idea to have a thread that was dedicated to working Pistons that you were using to share with the community.
If you have a cool piston that works and doesn’t need any trouble shooting post it here so others might be able to build upon what you started.
If you need help troubleshooting a core piston make sure you go to this thread CoRE - Get peer assistance here with setting up Pistons
For help getting started go to this thread CoRE for Dummies (How to get started and make your first Piston)
For an FAQ on go to this thread FAQ: What is WebCoRE? (And what was CoRE?)