Yo man. Ha, was I close? Firstly, you'll want to get it perfect... Like, really perfect. Send it to a few magicians who's opinions you would respect for feedback, advice, and for quotes. Nothing screams 'good effect' like a word of recommendation from a good magician, and you might even get offers of alternate handlings, additional tips, etc. Then you'll want to contact some smaller dealers, send them the trick, and wait for feedback. If it's good, and is going to sell, you'll get offers. Take it from there. Hope this helped bro!