Arts and Crafts
Paper horse that walks! https://frugalfun4boys.com/paper-horse-that-walks/
Bird kite - http://krokotak.com/2017/06/simple-bird-kite/
THE ARTFUL PARENT
https://artfulparent.com/12-kids-art-games-for-fun-and-creativity/
https://artfulparent.com/12-kids-art-games-for-fun-and-creativity/
Walking silkworm - https://youtu.be/v9Z9wt7vO80
Lego Pets (and other activities) - https://frugalfun4boys.com/lego-pets-building-instructions-dogs-cats/
Lego gravity rollers - https://frugalfun4boys.com/lego-gravity-project/