On my local Facebook yardsale group, there was a woman selling felt batman costumes for elves at $8 each... and that convinced me people are crazy and will spend money on anything. I decided to give the same costume a try using black and yellow construction paper and tape. This basically free elf costume was totally worth the effort, especially since it amused my kids for an entire day. You can easily make them as well, just print the template below on construction paper, cut that out, tape it to the elf and viola... Batman. I just saved you $8, you're welcome.