From: http://www.wandmagic.co.uk/content/mentalism/dieabolical.htm
Cost: £13 plus 85p P&P
A very clever Brass effect.
What you get is a little brass box and a brass die, all very good quality and comes in a little black draw string bag.
Effect:
You hand the die and box to a spec who is asked to place the die in the box while your back is turned or you could even leave the room. The lid is placed on the box thus completely hiding the die. This is then all passed back to you and after a bit of mind-reading, rubbing the box or whatever the magician is able to correctly identify the face up number of the die. Using the Derren Brown trick of getting them to say each number slowly, is a useful way of throwing them right of the scent and implying that they are sub consciously saying the correct number slightly differently to the others.
This can be repeated as often as you want and can be examined before after or even during and nothing will be found.
Of course you could use the fact that you know the number by doing another trick based on the number that they don't think you know.
It's very easy to do, though it did take me 20 mins or so before I got the hang of it, I'm sure I was just being slow though.
All in all a very nice trick at a very good price.
Delivery was also quick and even came with a very nice handwritten note.
If anyone has any good patter ideas I'd love to hear them.
I'm not sure what score to give it, in that I don't think it's ever going to get the biggest reaction, as lets face it, you have a 1 in 6 chance of guessing it correctly,( if performed only once ) but what it does, it does very well, and in that regard gets a 10 out of 10. Maybe a 7 out of 10 for the effect it has. For myself I'll use it to "tune" in to someone, before doing a mentalism trick with a much higher than 1 in 6 chance of getting it right by guesswork.