You will need:
- regular paper
- black cardstock
- cutter knife or scissors
- sticky tape or poster buddies
First you make a stencil (or print bat images from the internet) and cut them out.
Then assemble as many as you can onto one black sheet.
Cut them out, gently fold up the wings and stick them to the wall.
This project took me about an half hour for the entire swarm. I used four types of bats that differ in shape and size.