I got this image from Pixabay, which is a really awesome, royalty free image database. I've also used this database for many other images for this scavenger hunt, as well as for reference pictures for painting.
I cut out around the little batty guys.
I tied yarn around a baggy of treats, tapped the yarn to the bats, and then hung from the coat hanger with a loose slip knot, so when they children pulled on the bats, the whole thing easily came down for them.
The treats in the baggy are little paleo compliant chocolate cookies, but anything light would work!