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My sons wanted hypnorings like in the Captain Underpants books. They made color illustrations and everything, so I obliged.
And yes, I printed up a couple extras that I put up for sale on Etsy. https://www.etsy.com/listing/109577605/glow-in-the-dark-hypnoring
Hold up infront of your elementary school principle and say "You will obey my every command, whenever you hear fingers snap you will transform into Captain Underspants".
Hypno ring-a-thing by cymon is licensed under the Creative Commons - Attribution - Share Alike license.
So what's this mean?
We're sure cymon would love to see what you've printed - take a photo and share it on Thingiverse as a Make.
To post a Make simply visit this Thing again and click I Made One to start uploading your photo. You can also download the Thingiverse Mobile app (available via Google Play and Apple App Store) to take a photo and upload your Make right from the app!