Lock and key
Such a fun homemade toy! Kids can move the boards to create all kinds of tracks for their toy cars! ~ Buggy and Buddy. Car Tape makes this project even easier. Mod Podge over it to make it permanent.
Faces - lose parts
Leaf Man Transient Art from Rachel (",)
A super fun earthquake unit study that combines engineering with studies in earthquakes, plate tectonics, waves and more.
Tins and magnetic tape. Hours of construction fun!