I love this playful use of collage. This project is far more conceptual rather than craft oriented. Listening to the children's ideas about the creatures and their creature powers is just so fun.
I start with a lot of images to choose from, images of animals, people ( I like to use people with costumes) and images of paintings and statues. After choosing creature parts they just cut out all around the image and glue them down to card stock.
Then cut them out precisely.
Punch holes where the body parts should be connected, add brass fasteners and a chop stick to the back with either hot glue or tape and Bob's your uncle.