Slipknot Reveals Three New Puzzles with Iconic Album Cover Art Slipknot is releasing three new jigsaw puzzles featuring iconic album cover. The jigsaw puzzles are all set to ship on or around May 20th. By Mike Sprague Are you a fan of Slipknot? How about puzzles? Well, then today you’re in luck as we have word the band is releasing three new jigsaw puzzles featuring iconic album cover. The Slipknot Jigsaw Puzzles are all set to ship on or around May 20th.