This is a classic mental effect where three spectators each write down a number and a fourth spectator makes the addition. this sum matches your prediction. So far so good.

25 Flash Bank Notes - 500 SEK (Swedish Currency). Printed only on one side and smaller in size to comply with Swedish law. Fold it twice and it looks just like a genuine banknote folded three times.

This wonderful effect is closely associated with Billy McComb. A red silk is changed into a yellow silk as per the description above. Performer explains how it is done, but the more he explains the...

"A sensation!? Probably. There's been a couple of Rainbow Decks around for many years. Usually a deck with 52 different back images, made from the cards of 52 different decks.

The children start clapping their hands and the “mercury” of the Klapp-O-Meter rises. When the sound of the applause decreases, so does the “mercury”. When the clapping reaches its climax, the...