by Tomo » Jan 23rd, '07, 11:35
Perfect sense!
In essence, you can use any effect where you can guarantee to know what the spectator is looking at, because it's then all down to presentation. There are more effects like that and underlying techniques that you can adapt than you can shake a stick at. I'd advise you to do it that way rather than buy something off-the-shelf for the simple reason that you'll make it your own and it'll sit more comfortably within your usual performance.
So, think peeks, centre tears, impression pads, etc. and even psychological forces if you have the nerve and the outs if it goes wrong. Corinda's Thirteen Steps to Mentalism or Annemann's Practical Mental Magic are packed with useful techniques, but so too is Karl Fulves' Self-working Mental Magic, so it comes down to a matter of cost, really.
Basically, if it's guaranteed that you'll know what's being thought of, the sky's the limit because it becomes about presentation.