We have hopping half in a uk £2 and 2p version.

Show a £2 coin and a 2 pence in your hand.  Remove the £2 coin and place it into your pocket. Ask the spectator which coin remains in your hand.  They say the 2p, slowly open your hand to show both coins are back in your hand. Repeat this with the copper coin and then again with the £2 coin. The kicker ending comes when both coins vanish from your hand.

We highly recommend this effect it is excellent.