Light-Up Jellyfish Costume Hat
- Standard: TBD
- Hat
Small Moments,
Monster Memories
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Size | Measurement | Standard | Metric |
---|---|---|---|
Standard | Hat Circumference (inner) | 23" | 58cm |
Standard | Brim Radius | 6" | 15cm |
Standard | Tentacle Length | 52" | 132cm |
- 73% polyester, 27% nylon crown & tentacles; 100% polyester lining & fiberfill stuffing
- Crown & tentacles are pale pink iridescent organza
- Crown of hat is stuffed w/ fiberfill and has LED lights under shell
- Tentacles hang from edge of stiffened brim
- Battery pack located on underside of back brim
- Requires 2 button batteries (demo batteries included)
- Exclusively made by us
Jellyfish Jam
Always felt like a fish out of water at social events? Embrace it and become the radiant heart of any gathering. The Light-Up Jellyfish Costume Hat transforms you into a glowing spectacle, ensuring you'll drift above the sea of commonplace outfits. No more awkward corner lurking; you're now the life of the party, mesmerizing everyone with your illuminating charm.
Design & Details
The hat is crafted from a blend of 73% polyester and 27% nylon for the crown and tentacles, complemented by a 100% polyester lining and fiberfill stuffing. Its pale pink iridescent organza adds a magical touch, while LED lights under the shell provide an ethereal glow.
Tentacles gracefully hang from a stiffened brim, and a discreet battery pack sits on the underside of the back brim. It's a self-contained wonder, requiring only 2 button batteries—demo batteries included—to light up your world.
Glow Your Own Way
This Light-Up Jellyfish Costume Hat is more than just a flashy accessory, it's a conversation starter at any party. As you float through the room, people will feel the jellyfish vibes you got going on. After all, you're the captivating jellyfish in a sea of ordinary fish. Prepare to be the iridescent center of attention; it's time to let your light shine.

We believe that costumes have the power to create some of life's best moments. That's why we started Made by Us. This diverse selection of costumes and accessories are all artfully designed and expertly crafted by our talented team of artists, designers, and developers.

Each project begins with a passion for true quality–embroidered patches, faux fur cut with care, and hand-selected fabrics that are as durable as they are comfortable. Those are just a few examples of how much craft and creativity we put into each and every product. Just for you.

No matter how much time it takes, our goal has always remained the same–to create products that inspire your life's best moments–the big, the small, the funny, the spooky, and the sweet. The moments we all cherish. That's Made by Us.
- Super Fun!By Sydney | October 14, 2025
Love this hat, it’s going to be the highlight of my costume! I do agree with another commenter though about the head hole being way too small. I have an average size head, but will need to superglue it onto a headband or something before wearing it out. Overall I love it though, and I’m happy I purchased it!Bottom Line Yes, I would recommend this to a friend.Was this review helpful to you? - Cute and FunnyBy Erin | October 8, 2025
Quality is great. Love the lights and it's exactly what I wanted. The tentacles tend to stick to your clothing a bit and the head opening is not very big. I wear a 7 1/4 and it's really tight. I have to come up with a headband to glue inside or something to hold it sitting on the top of my head. I know it's going to be a hit at the party.Bottom Line Yes, I would recommend this to a friend.Was this review helpful to you? - AdorableBy Jan | October 4, 2025
This costume was exactly what I expected.
It is so cute and different.Bottom Line Yes, I would recommend this to a friend.Was this review helpful to you? - Hilarious for party, but color different in personBy Chelly | September 24, 2023
Bought hat for an upcoming costume party. Photo makes piece look more pale/iridescent but it’s more of a bubblegum pink with iridescent shine in person.Bottom Line Yes, I would recommend this to a friend.Was this review helpful to you?