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Electric Jelly Fish Costume
by Nikki
2012 Halloween Costume Contest
Jellyfish Costume
by Regina
2012 Halloween Costume Contest
Jelly Fish Costume
by Sheila
2011 Halloween Costume Contest

DIY Jellyfish Costumes

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75 votes
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Jellyfish - Homemade costumes for women
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Photo #1 - Jellyfish Photo #2 - Jellyfish Photo #3 - Jellyfish Photo #4 - Jellyfish Photo #5 - Jellyfish
Costume type:  Costumes for Women
Categories:Halloween Costumes, Animal Costumes

This homemade costume for women entered our 2012 Halloween Costume Contest.

A word from Helen, the 'Jellyfish' costume creator:

I was inspired by pictures of jellyfish costumes that I saw on other websites, plus the fact that they glow! I was going for something not too expensive and also not heavy or cumbersome so I decided to use a hybrid of methods I found on the web and added my own twist.

Inexpensive hat with a brim from party store (choose one that fits you well)
Foam board (I reused from one of my kid's projects)
Bubble wrap- both big and small (recycled from home and bought some at the dollar store)
Drycleaning bags
3 Thin wire battery operated warm led lights (purchased from Amazon)
3 "tap on" battery operated lights- can purchase just about anywhere. The kind that are "stick on" and can attach with the adhesive back.
Iridescent and colored metallic tissue paper- from the dollar store
White duct take and clear shipping tape
Iridescent mesh tubing- purchased at AC moore for 1/2 price. Can also find on the web easily.
Variety of white, clear and/or iridescent wired ribbon purchased on sale or with discount coupons. I used 1 and 1/2 rolls of both the wide and the more narrow widths.
Glue gun
Material - I used an old veil, but any sheer and/or iridescent material you like is fine.

Started with the cowboy hat (sombrero seemed to flimsy as I wanted to be able to move about and dance easily).
Cut foam board in a 20 inch diameter circle (this was pretty large- I would do smaller next time, maybe 18 inches). Then cut a closefitting hole in the foamboard for the top of the hat to fit through (foam board is sitting on top of hat). I cut carefully each time to ensure the hole and hat fit my head closely. I then applied hot glue around the top of the cowboy hat rim and firmly pressed the foamboard circle onto it. I poked a hole from underneath on each side of the hat in order to thread the battery operated light wire through from underneath the hat. Hot glued and adhered the 3 tap on lights underneath and behind where my head would fit-- these make the large tentacles. I covered the top of the hat with white duct tape and then glued metallic tissue all over the top and underneath of the hat. I also taped some of the colored tissue over each of the tap on lights. I used blue for one jellyfish and pink for the other one. Hot glued the battery operated light control to the underside of the hat – one on each side (near where my ears were for balance). Made sure that tops were exposed so that I could change the batteries if needed. To build up the top of the hat, I used a some white plastic bags, lots of drycleaning bags and even some toilet paper rolls – attached with the shipping tape. *make sure to keep the light string out! Once I achieved the basic shape and height I wanted, I then taped the iridescent, metallic tissue all over the top with clear tape. Next, I attached the lights. No particular pattern, just enough to make sure the entire top would glow and be spaced out nicely. Used the clear packing tape to attach. Then I covered the entire top of the hat with the large bubble wrap bringing over the edge and attached it underneath (about an inch or so inside/underneath) with staples and glue. Now it was time for the tentacles. for the three inside tentacles, I unraveled a long white loofah and cut them at my knees. Then attached them around the 3 tap on lights – so the light would shine down inside of the tentacle. I measured the mesh tubing, ribbon and small bubblewrap and cut so each tentacle came to my knees and varied the lengths a little. I scrunched the ribbon. Attached all to the underneath of hat with hot glue. I used an old veil found at the thrift store to cover the entire jellyfish, leaving about 3 inches extra underneath the hat, but you can use any sheer, iridescent material – just look for something you like!
Dressed all in white (can do all black too if you like. We glowed all night and had so many compliments and photos taken. The kids loved seeing us out trick or treating! Fun, fun, fun!

Rating: 4.3 of 5. Votes: 75

75 votes
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#1 comment by Ginger June 9, 2013

these are awesome!! I would love to see some pictures of the making process to go with the instructions!!

#2 comment by Debbie November 7, 2013

I made this costume for my 7-year-old and it got many "best costume ever!" votes with extra candy offerings. Thank you ladies for sharing and posting. I did have some troubles translating the instructions, but in the end it turns out great!

#3 comment by Jennifer September 3, 2014

I really want to make this but I'm having a hard time with some of the instructions. Any chance you took pictures of the process?

#4 comment by Nancy Breu September 13, 2014

We're going on a cruise for Halloween and I want to make these for my husband and I but am having trouble understanding how to do the light strings. The instructions call for 3 led thin wired lights but to put as hole on each side of the hat which sounds like you use only 2 of the light strings? Can you please elaborate? Thank you

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