More ideas from Bjørnar
As long as they didn't try to climb their creations, this would be okay.

Why does this have to be for a boy! Another Pinner: "Super fun idea for a little boy's room! My brother was super in Legos as a kid -- perhaps they should do this in Corin's room?

TRY THESE 44 SIMPLE DIY STRING PROJECTS NOW AND BEAUTIFY YOUR HOME !

DIY - Sharpie Coasters, ceramic tiles (free or very inexpensive at any home store center), rubbing alcohol added with a straw or eyedropper, (for the colors to mix) -- Great inexpensive gifts!