Introducing the world's most usable jigsaw puzzle, the Pieceless Puzzle. All the "pieces" are connected. Pictured is the puzzle shaken out into formlessness. In this mode it looks like a mass of dried, cooked spaghetti. If you assemble it, though, it looks just like a completed jigsaw puzzle.
The video doesn't mention this, but I assume that by connecting all the puzzle pieces, they have reduced the difficulty of completing the puzzle somewhat. But hey, no chance of losing a piece!