This could be a fun way to create Calder acrobats! Swing From An Empty Shoe Box Project For Kids - by Krokotak - == - By Russian educative website Krokotak, here is a cool project for kids, with a tutorial full of photos that dispenses words.
Plastiquem: PLOU I TOTS ANEM AMB PARAIGÜES. Crayon and watercolor umbrella drawings. Crayon resist with blue water correct over white crayon. Or cool colors over white crayon and make the umbrella warm colors only.