Pop-up cards, with their wonderfully interactive, dimensional nature, are all the rage these days--and renowned artist Sandi Genovese shows crafters how to make their own. These 25 memorable projects truly make cards pop, including a multi-tiered chocolate cake design that looks good enough to eat; an ornament-bedecked, three-dimensional Christmas tree card for the holidays; and the accordion-folded "Hand in Hand" card that seems to applaud when it's...