Glue it closed with a low temperature glue gun. 7. Cut the side fins from matching paper or card stock, fold down the end, and glue it to the fish. 8. Decorate your fish with dot stickers or anything else you would like. One especially intriguing intact scroll engraved on copper sheeting identified over sixty sites of buried treasure. Cut out the flipper and flukes. 3. Fold the fluke pattern in half, fold up the flukes as shown in the picture, and glue it closed.