12. The Glowing Under-the-Sea Jellyfish
Create an ethereal, oceanic display with a jellyfish Jack-O’-Lantern. Carve a dome shape at the top of the pumpkin with swirling, organic patterns. From the bottom of the pumpkin, suspend long, flowing tentacles made of translucent ribbons, lace, and blue LED fairy lights that dangle down. Hang this pumpkin from a porch ceiling so the tentacles can sway gently in the autumn breeze, casting a watery, bioluminescent glow.