Jul 7, 2026

Glowing Jellyfish Pumpkin Carving With Seaweed

Trailing tentacles drift down through carved seaweed in this underwater jellyfish pumpkin, the whole scene glowing amber from a light inside. The bell and tentacles are etched through the skin at varying depths, so thin the walls gradually and test the glow as you go. Small drilled circles scattered around read as bubbles. A flickering LED candle adds gentle movement that makes the tentacles appear to sway.

This is an AI-generated concept image: a realistic, carvable design idea rather than a photo of a finished carve. AI concepts are always labeled and sit out the leaderboard and the contest.

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Hard Animals Artistic Shaded / Peel

jellyfish ocean etched tentacle underwater seaweed glow

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Want to try this?

Bring a drifting jellyfish and swaying seaweed to your porch with soft amber shading.

Some experience helps · Depth shading + fine cutouts

Read our carving tips

Tools for this approach

Our suggestions for trying a similar carve. Start with what you already have.

Elmchee Pumpkin Carving Kit
13-piece kit with carrying case
Saws for the larger cutouts, plus a scoop for hollowing. Covers both jobs in one kit.
View on Amazon
Speedball 4131 Lino Cutter Set
Handle + 5 interchangeable cutters
Interchangeable cutters for peeling and shading the face. Useful for the finer details.
View on Amazon

A little extra help

Our tips for carving a similar design

The core trick here is depth shading: the jellyfish bell, tentacles, and seaweed are thinned to different wall thicknesses so light glows through at varying brightness rather than being fully cut away. Plan the design as three glow zones, keep the tentacle strands connected top to bottom, and save any true cutouts for the very end. Scatter small drilled dots around the scene to read as bubbles.

Written by PumpkinCarvingIdeas.com, inspired by the image above. These are our suggestions, not instructions from the uploader. This approach to the AI concept has not been tested on a real pumpkin.

From pumpkin to porch

Prep the pumpkin and transfer the design
Pick a tall, smooth pumpkin with a broad flat face for the scene. Cut a lid from the bottom instead of the top so the pumpkin sits steady, then scrape the front wall down to about one inch so light passes through evenly. Tape your jellyfish and seaweed stencil to the face and poke the outlines with a transfer tool or pushpin. Step back and check that the bell sits high and the tentacles have room to trail toward the seaweed.
Shade the jellyfish bell first
Use a ribbon or loop tool to peel just the skin off the dome of the bell so it glows a soft dim orange. Leave the ridged scallops along the bottom edge of the bell as untouched skin so they stay dark and define the shape. Work slowly and hold the pumpkin up to a light now and then to judge the glow. Keep the wall intact here since the bell is meant to shade, not cut through.
Carve the flowing tentacles
Etch the long tentacle strands by thinning them more deeply than the bell so they read as the brightest part of the body. Leave narrow ribbons of skin between strands to keep separation and structure, and let each strand stay connected at the top where it meets the bell. Vary the depth along each strand so the light ripples rather than reading as a flat glow. Do not cut fully through; these thin walls are what make the tentacles appear to sway under a flickering LED.
Add the seaweed and bubbles
Thin the seaweed blades rising from the base to a mid glow, tapering each tip so it narrows gently rather than ending in a fragile point. Keep the base of every blade wide and attached to the pumpkin for strength. Use a small drill bit or the tip of your knife to make the scattered round bubbles, going a little deeper on a few for accent. Wipe away debris and check the balance of the whole underwater scene against a light.
Make any final cutouts
If your design calls for a few full openings, such as the largest bubbles or a bright gap in the tentacles, cut those through last so the shell stays rigid while you work. Angle the blade slightly outward so the openings catch more light. Go slowly around the thin etched areas nearby so you do not crack them. Clean up the edges with a small detail tool.
Light it and photograph
Drop in a flickering LED candle or a small LED puck and settle the pumpkin over it through the bottom opening. The flicker gives the tentacles gentle movement, so let it run a minute and adjust the light position until the bell, tentacles, and seaweed each glow at their own level. Shoot your photo at dusk on a porch or step for the warmest amber look. Coat cut edges with a little petroleum jelly to slow drying and keep the glow crisp for a few days.

Gather your supplies

Check things off as you get ready.

Work on a stable surface, keep your free hand out of the cutting path, and have an adult handle sharp tools.

Three levels of light

Leave intact
The scalloped bottom edge of the bell and the dark water background stay untouched skin.
Peel & shade
The bell dome and seaweed blades get skin-peeled for a soft mid glow.
Cut through
The deeply thinned tentacle strands and a few accent bubbles read brightest, with any true openings saved for last.

Learn the carving basics

Before you start cutting

How do I keep the thin tentacles from breaking?

Thin them by shading rather than cutting all the way through, and leave narrow ribbons of skin between strands for support. Keep each strand connected at the top where it joins the bell so nothing dangles free. Working on a firm, freshly scraped wall also helps the etched lines hold together.

How thin should I make the wall for the glow to show?

Scrape the whole front face to about one inch first, then shade the bell and seaweed a bit thinner and the tentacles thinner still. Hold the pumpkin up to a light often as you work so you can stop before a spot gets too fragile. Different depths are what give this design its layered brightness.

Should I use a candle for the swaying effect?

Use a flickering LED candle, not a real flame. The LED flicker gives the tentacles their gentle sway without the heat, smoke, or fire risk of an open candle. It is also safer for the thin etched walls, which can scorch over a live flame.