How to Make a Box Jellyfish 3-D Model

Written by jeremy cato
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How to Make a Box Jellyfish 3-D Model
The box jellyfish is a beautiful, yet deadly animal. (jellyfish image by Brett Bouwer from

The box jellyfish is one of the strangest and most dangerous creatures in the world. Its transparent body is comprised mostly of water, yet it also contains some of the most deadly venom of any creature on Earth. Even with this danger in mind, the box jellyfish is an incredibly beautiful animal to watch in its natural habitat. You don't have to plan a snorkelling trip to see a box jellyfish, however--you can make a 3-D model of one at home.

Skill level:

Things you need

  • Translucent blue, quart-sized, rectangular food container
  • 5 translucent blue plastic bags
  • Scissors
  • Clear glue
  • Invisible tape
  • Package of craft eyes
  • Black marker

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  1. 1

    Remove the lid from the translucent container. This is the jellyfish's bell or umbrella. Take one plastic bag and cut off the handles. Spread some of the clear adhesive onto the bottom and side of the container. Place the bottom of the bag into the bottom of the container. Press the bag into the bottom and sides to adhere it to the walls of the container. The edges of the open end of the bag will extend beyond the rim of the container. This is the velarium.

  2. 2

    Cut the handles off the four remaining bags. Cut off the bottom of each bag, then cut the bags down the centre so that they can be spread out into rectangular shapes. Cut each of the rectangles into four long strips. Twist each strip individually into a long, tight rope, creating four long, tentacle-like strands from each bag, 16 in total. Use tape to fasten together both ends of each tentacle so they don't unravel.

  3. 3

    Glue one end of the tentacles to the jellyfish's velarium, four in each corner of the plastic container that forms the jellyfish body. The ends of the tentacles should hang freely. If desired, use tape over the glued area of each set of tentacles as reinforcement.

  4. 4

    Glue two craft eyes onto the plastic container just below the rim. Draw 22 black dots (smaller eyes) around the side of the jellyfish also below the rim.

Tips and warnings

  • The rectangular container should be made of plastic. The plastic bags should ideally be grocery bags, but plastic sandwich bags or freezer bags may also work.
  • Yes, a box jellyfish has 24 eyes.

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