I love making magnets and clips! I made up a few sets using PTI's nugget tins. Both the clips and magnets have the same paper, allowing a great set to give as gifts! If I don't put the clips in a tin, I'll adhere a magnet on the back, but using the tins, there's not enough room.
On the less busy papers, I normally stamp a few words (maybe later, important, stuff, bills and coupons are on this set).