Tim Holtz Bird Crazy Cling Rubber Stamp and Sizzix Thinlits Dies Bundle Custom bundle of Tim Holtz' Bird Crazy Cling Rubber Stamps (CMS212) and Sizzix Framelits Bird Crazy Die Set (660954) Here's something to chirp about! Bird Crazy by Tim Holtz are the rarest birds of all. The 6 stamps and 6 dies measure from 1 3/4" to 3" in size. Six deeply etched red rubber cling mount rubber stamps that adhere to any clear acrylic block. The dies are compatible with most popular die cutting machines