I always thought that the death of Frosty meant witnessing a pool of water in his place, but my imagination stands corrected after seeing these zombie snowman ornaments.
Apparently, a dead -- or undead, rather -- Frosty is actually capable of coming back to life after his initial dissolving act. Filled with blood and guts, the zombie snowman ornaments' guys spew and bleed instead of trickle with icy water. The only part of him that could have rotted naturally would be his carrot nose but oddly, it is the one thing that remains in tact in this design. As his face and arms decompose, turning into a slimy murky green, the zombified snowman wobbles closer towards his creator. The only question remains is whether actual heat or even a simple blow dryer can defeat him.