Here’s an unusual accessory – it’s a money clip that doesn’t look like a money clip. The Invisible Money Clip is a sticker that you glue to the back of a dollar (or Euro or British pound, or whatever), and the magnets in the sticker turn that bill into a money clip. You can keep your money neatly folded together without an obvious clip. (I can’t find anything that says if the sticker is removable without destroying the bill.) The Invisible Money Clip is $9.95. You can even get them custom printed with your logo and business information for use as a unique customer gift.