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!