I stapled the wings together and used masking tape to attach them to the body. I tried using glue dots, but the plates weren't sticking very well. The tape worked fine as long as the kids didn't pull on the wings. And if they did and the wings came off, it was easy to reattach them. In fact, I mentioned that without the wings, it looked like a caterpillar. So then the kids started playing with them first as caterpillars and then added the wings to turn them into butterflies! I think they look so colorful sitting on the table in a big group.
And here are the kids making their butterflies fly!
You could use them as finger puppets, too!
Fun Fact: Butterflies taste with their feet!