How to Make a Catapult for Kids - this fun STEM Activity will keep them busy for hours! Four to six Popsicle sticks, three or more rubbed bands, glue (or glue gun), small cap, cotton balls or other small items (buttons?) for catapulting.
Saw these style boards on Oriental Trading for use as geometry boards. Wondered a diy hack. Use glue on bottom circle of thumbtack to secure it from being plucked out by little fingers. Sowdering About in Seattle: Toddler Busy Boxes
This dish soap silly putty is so EASY! You can whip up a batch in less than 5 minutes using two simple ingredients you likely have in your kitchen already. All you need to do is mix cornstarch/flour and dish soap, keep mixing and ta da!