Invisible Coin is all you need and it is really easy to set up

There are many of possibilities

The deck is cut using the "Traditional" cutting method made famous by Richard Turner

The signed card can be given away as a souvenir

then consider the incredible tricks that are included

Triple Vision trick - David Regal Jim and MacGregor Invisible Coin is all youA Test Condition Impossibility! EFFECT: When the magician notices that he's missing a few cards from his blue backed deck, a few cards are randomly chosen by a spectator from a red backed deck and added to the blue deck. When the magician discovers the missing blue backed cards, they match the red backed cards chosen by the spectator! Different Cards Can Be Used Every Time The Effect Is Performed A Self Working Killer Effect from David's Magic Castle