You introduce to your spectator that you have discovered aa bending machine device from the future. It's slim and easy to carry because it's just a single playing card.

You put a normal metal paperclip on the card and it starts to visually bend by itself on top of the playing card and everything is completely examinable.

This is a great effect to carry in your wallet. I also love the fact that you can use paperclips or some business cards you can find when you are out in public.

Bending Machine is visual, easy to do examinable and uses ordinary objects. Seriously what more could you ask for in a close up magic effect?