Strap-on Tongue Piercings
Not all people like tongue piercings, but those that do like them for various reasons - some think they're fashionable, others think they're practical...
For those who think they're practical, I'm simply wondering if it's strictly necessary to punch a hole into your tongue to have a little stimulating something in your mouth. I'm aware it's a challenge due to the shape of the tongue, but I think it should be entirely possible to create a strap-on piercing (that's not actually pierced, obviously).
Reward: A free sample (unless the final product is painful and/or looks horrible)