I'm wondering if anyone performs this illusion from Penguinmagic by Morgan Strebler.

Personally i use it very often and i'd glady receive or share tips with people who perform this effect.

For people who don't know, this is a slight intro.

-- You BORROW a coin from anyone, any coin. You hold up the coin to show them and bring it up to their eye level so they can SIGN on it. After signing, you proceed to bend the coin by softly touching/rubbing the base of the coin. --

i like to do this effect, it's extremely visual and the spec will be dumbfolded. i always do this after i had done my fork bending routine in the liquid metal and tell them that i can also bend other objects and borrow some coins to carry on with the effect.