SirRawlins wrote:First of all i would deal with a copyright on the trick content, make sure you Video it, and thoroughly document everything that the trick ivnvolves, then place it in a jiffy bag along with the video, and a version of the gaffed deck, and post it to yourself but DO NOT open once its recieved, that way if anyone tries to take the trick from you, you have a post marked copy from a date prior to anything they will have.
Sorry Rob, but I doubt thats going to protect him to the extent you think. In the US method is not protected and although it is less clear cut here in the UK the interpretation will likely be the same. Remember that copyright protects the expression of an idea, not the idea itself. But as I've said before, if you need legal advice go see a lawyer, not some stranger on the internet.
Saying that the method that Rob presents could be used to defend any potential argument over who originated the effect. I know the Magic Circle arbitrate in such cases, but this gives you no protection from rip off products.
There are really only two forms of protection available to you. The first is a patent on the gimmick which will almost certainly not be economically viable. The second is to simply use the market to defend your position. Get a good quality product to market and sign as many distributors as possible, leaving as little oxygen as possible for any
alternative products. You may be able to do this yourself, but it would probably be better if you made friends with someone who had the relevant contacts and let them handle it. If the effect is strong and product has potential I'm sure they'll help for an appropriate percentage.