The makers of Peeps REALLY want this idea to catch on. For the second year in a row, they're selling " Peep on a Perch" sets, which are supposed to be the Easter version of "Elf on a Shelf." It comes with an oversized Peep stuffed animal, and a book explaining how it assists the Easter Bunny, and SPIES on kids to make sure they behave in the lead-up to Easter. Each "Peep on a Perch" set costs $25, but you can get them on Amazon right now for about 19 bucks. They're intended for kids between 3 and 7.