Picture of shark week cat costume
Shark Week is the best. Even my cat Luna thinks so.

And what better way for a fancy predatory jungle cat to celebrate Shark Week? Wearing a shark fin costume and destroying all the tiny things in the apartment is definitely the way to go.

The costume only consists of a shark fin and is really easy to make, in case you have a tolerant cat that might want to be a shark for shark week. :D
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Step 1: What you'll need:

Picture of what you'll need:
  • fabric glue
  • a piece of grey felt (those printer paper sized ones you can find anywhere work!)
  • thin elastic
  • cardboard from a cereal box or something similar
  • sewing machine or needle & thread
  • pins
  • paper to draw shark fin on

Step 2: Cutting + sewing

Picture of cutting + sewing
I made a paper template for my shark fin, and then cut it out and pinned it to the felt. Cut out two pieces of the felt, and then sew them together - but not the bottom of the fin yet!

I trimmed the seam allowance so it looked cleaner, too. Then I cut out a piece of cereal box cardboard to be slightly smaller than the felt fin so it would fit nicely inside. You might need to trim a little off the bottom of the cardboard piece to get it to fit inside. Once the cardboard is inside the fin, sew over the bottom to seal everything in place.

At this point I tried to put in on Luna in a variety of ways and they all failed and she judged me. So I moved on.

Cut out two rectangle of fabric no longer than the fin and 2-3 inches wide. Sew these together all around the edges.
VeganEthan10 months ago

I love this! It's adorable and it'll give people a chuckle, and Sushi won't even care about it, since I'd just attach it to his harness.

myarenda2 years ago
very nice cat)))
jessyratfink that is cool! :D
Sam I Am2 years ago
think it would work on chihuahuas too?
jessyratfink (author)  Sam I Am2 years ago
Definitely! I think it would look awesome on a chihuahua. :D
clewis212 years ago
Poor little baby looks like she thinks you are going to make her go under water to fool people with it, lol! Make her some butterfly wings, that would be cool. I think I'll suggest it to my kids for their cats, but they are getting on in years now and may not be as tolerant.
At first, I thought Jezebel, BoingBoing, Gizmodo, LifeHacker, ohdeeoh, and CRAFT were other cats in your house. Pays for me to read all of the article! I like this especially during shark week.
Hahaha, that is absolutely adorable! Very nice! You should do other holiday kitty costumes :)
onrust2 years ago
That cat is not scared of no stinking shark!
Very nice, quality work even though it is a small project. None of my cats celebrate shark week. Maybe you'll create another holiday costume.
ansil2 years ago
this made my day
billbillt2 years ago
Great!!...Great handwork and great thinking!..5 stars!!.....
One of my cats would tolerate this. I am imagining Jaws music playing as shark-cat creeps stealthily across the floor and pounces.

I must make one for the dog and take him swimming. That would be hilarious.
Very nice! I'd love to make one and make even more funny videos than I usually make, but my two cats would totally freak out, one would panic and jump all over the place and eventually get hurt trying to take it off, the other would just freeze and stay terrified until I get pityful and set her free.
artfulann2 years ago
Very cute! Has she figured how to get out of it yet? Have you ever noticed how kitties seem to know when you're video taping and get curiously still and camera shy. Once the button is turned off. Zoom!
jessyratfink (author)  artfulann2 years ago
She never quite figured out how it was attached because her fur was covering the elastic. :P
mikolynn2 years ago
jajajajaj! Okey! is a good costume, but... Is the less scaring shark I ever seen!
jessyratfink (author)  mikolynn2 years ago
She's terrifying only to plastic straws
greenyouse2 years ago
This is the most wonderful instructable I've seen! very nice
jessyratfink (author)  greenyouse2 years ago
Hahe what a cutey. Its nice the little Luna like wearing costumes. But does she like the water the sharks are in. :)
jessyratfink (author)  Treasure Tabby2 years ago
Ha, she actually likes water quite a bit. We have a huge refilling water bowl, and sometimes she'll put both her front legs in it. More often than not when you pick her up she's wet from something. :P
TheBaldFish2 years ago
My fiance definitely loved this. Nice work.

p.s. What pretty white kitties you have. Did you make the
maltesergr82 years ago
Costume is adorable, but of course, I think your kitty, Luna would makes any costume look adorable!!

Very beautiful kitty ;)

slylee2 years ago
Sooo cool do u think this would work of dogs?? cause if i would that would be awesome!!
jessyratfink (author)  Dusk Shadows2 years ago
Oh, definitely! I was running out of time to get this posted before Shark Week, though, so my gigantic dog didn't get a fin. :P
=( no fin for big dog =( but still my dog can get 1 cause he's the size of a cat lol and plays like 1 2
its just elastic cant see why it wouldnt
Cool Bananas I know you'd like them monkey kid lol
I'm glad I'm not the only one with extension cords and power strips all over the place. Cute chark. (or is she a shat?) Cute LunaShark.
jessyratfink (author)  saitaiable child2 years ago
Haha, yeah... our living room has one outlet in a really awkward place so we have to feed it power. :P

I like chark!
Ridiculously cute :)
Kiteman2 years ago
It seems every stitcher needs one thing - a very tolerant cat!
haha cool
luna is such a tolerant kitty :)
rrkrose2 years ago
This is too cute! I would make one for my cat but he would never forgive me. Your cat seems to actually like being dressed up (at least in the pictures)!