coin tricks

Hi y'all I was thinking about posting an idea I had onto the market for the first time. though I just wanted to hear some feedback on whether this trick is worthy or not to be on the market as well as feedback/ideas/improvements whether it's original and pricing ideas as this would be my first...

Any suggestions on books to read if you wanted to recreate Mad Sweeney's coin tricks at the Crocodile Bar from the show American Gods? Here's the description from the book "Coin tricks is it?" asked Sweeney, his chin raising, his scruffy beard bristling. "Why, if it's coin tricks we're doing...