What's this? It's Jack Skellington as a Chia Pet! The handmade Jack Skellington decorative planter comes to life in days, with full growth in 1-2 weeks using the simple included instructions. They can be reused indefinitely, too! Nightmare Before Christmas Jack Skellington Chia Pet comes with a packet of Chia seeds good for 3 plantings, and can also be replanted with similar seeds like basil or alfalfa.