Great sensory play for all ages today! And requires minimal ingredients… this is totally taste safe and often used in vegan cooking as a meringue substitute.
Make foam from a tin of chickpeas?! Say what?? Yup just whip the liquid from a tin of drained chickpeas til it forms stiff peaks (like egg white) … add a pinch of cream of tartar and a little color … voila! Sensory play sorted!