Brainstorm inventions to be foot operated.

Read a given text. Find as many synonyms and/or antonyms as possible. Work in groups if you like.

Find the average shoe size of your class.

A student shares something that stresses them out, then other students can brainstorm suggestions to relieve the stress.

Sketch an idea for an art project you can eat.

Brainstorm uses for a brick.

Pull a long word from the dictionary, then see how many other words can be made from it.

List all the birthdays in your class on the chalkboard by month, then discuss the idea of "randomness".