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Step 1: Tools & Supplies
Step 2: Making The Fin
Step 2 - Free hand draw a shape that resembles a shark fin.
Step 3 - Now draw a rectangle at the bottom of the fin.
Step 4 - Cut out your paper fin, lay it on the double layer of felt and trace the outline. When tracing the outline, leave a little margin away from the paper. Cut out the fin shape that you have traced.
Step 5 - Cut the rectangle off of your paper fin and trace the outline on a piece of cardboard.
Step 6 - Place your cardboard fin onto the felt. You want to make sure that there is a decent margin of felt around the cardboard for gluing. If there isn't a margin, you might have to cut down the cardboard a bit.
Step 7 - Apply a generous amount of hot glue to one side of the cardboard and place it on the felt.
Step 8 - Apply glue to the other side of the cardboard and around the margins of the cardboard. Place the other felt piece on top and press firmly.