I have three of them, only the first two of which I'm kind of serious about. (Some of these may already exist. I'm far too lazy to check.)
1) The Love Me Knot
It would be an inflatable bulb like thing to attach to the base of your penis or your favorite butt plug or strap on that will inflate and deflate via remote control to safely simulate knotting. We could go further with it by adding vibration features and a deflation timer that can be set for up to 30 minutes to satisfy the delayed "stuck" fantasy that comes with real knotting.
2) The Chinese Dick Trap
A toy for the gay boys! Have you played Cards Against Humanity and have come across the card "Getting your dick stuck in a Chinese finger trap with another dick"? Well I think that's really hot and that's basically what this would be: a slightly larger Chinese finger trap that can satisfy two dicks at once, made of a flexible yet durable mesh plastic with the same tightening and flexing action that a real Chinese finger trap can offer. Getting out of it would be easy. Just push the two sides together towards the center with your hand and pull out. You could make the inside of it textured or add a virbation attatchment for even more fun!
3) Fappy Bird
A PC game that you play with your dick! It comes with a disk for installation and a cock ring with a motion sensor. Its just like Flappy Bird, except you make the bird flap by moving your hand up and down across the sensor. You could even minimize the screen and watch porn at the same time you play! It could have an online leaderboard and Facebook connection. Try to beat your friend's high scores!
Fappy Bird! A Game That Will Make You So Mad, You'll Pop A Boner!
Updated by Tangent