Biokinesis is the only one I know of. It's safe-ish. Anything involving the eyes is not 100% safe, let's just be clear there.
However, the method is pretty tame and I've seen people come up with it on their own for a variety of reasons. Another however - you're going to have a very hard time finding the product. The gimmick is legally restricted in the US for sure, and probably other countries.