Here's the rainbow catch that I made for iMod. There isn't really much to say other than the fact that it's a a rainbow catch.
It's a lot cleaner than my first rainbow catch which means i'm getting better.
I use this setup to test rainbow catches It is just a small piece of 1.25" PVC and delrin rod and it's pretty nice because I don't have to screw in the rainbow catch to test it. I hope you're happy with the catch, iMod.