Kate of Minieco made this cute key holder from Legos that she raided from her son's Lego box. It would be fun to make a set for the entire family.
Read more in Family at Boing Boing
Mark Frauenfelder is the founder of Boing Boing and the editor-in-chief of MAKE and Cool Tools. Twitter: @frauenfelder. His new book is Maker Dad: Lunch Box Guitars, Antigravity Jars, and 22 Other Incredibly Cool Father-Daughter DIY Projects