Chris, it seems like a new principle.
Basically in the most visual way you can imagine a tattoo appears on your arm of and I quote "Anything" you want. Card revelations, Word revelations, Image revelations.
It's literally a wave over your arm and it appears. A wave back again and it disappears.
It looks weird and like trick photography to be honest, but I know it's not and that scares me.
- Sean