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

Step 1: 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

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.

Step 3: Making It Stand Up Straight

Now for copious amounts of fabric glue!

Draw a line down the middle of the rectangles you sewed together and push the fin into the glue. You'll probably want to hold it for a moment to make sure it bonds correctly. Once that's dried, cut two tiny rectangles from the felt, and glue them to either side. They're going to act as braces. Use lots of glue and position them like the photos above. :D

Once everything was glued, I set two books down on the fin and let it dry the rest of the way.

Step 4: The Elastic!

This is all going to depend on the size of your cat. Luna is a tiny lady, so I used elastic 12 inches long to go around her middle. You don't want it to be too tight, you should be able to fit two fingers under the elastic when it's on the cat.

Punch four holes in each corner of the rectangle, pull the elastic through and knot tightly. :)