Cut out tail shapes in different colors of cardboard.

Outline with glitter glue and draw on lines for tail fin decoration.

Glue each tail onto a toothpick with a hot glue gun and let dry.

Poke a hole at the end of each cone or cut the end down slightly until there’s an opening visible.

Stick the toothpick through the hole to make a tail.

Use a piping bag to make a nice thick icing layer, especially around the outer border of each cupcake.

Turn the cone upside down and place one onto each cupcake.

Decorate further if desired – sprinkles would be cute.

I left it as is since it accompanied a colorful cake.