This idea is pure bangarang. I remember seeing an exhibit sorta like this at the MET a couple of years ago (completely forget the name of the artist...whoops) and the idea always stayed with me. The design at the museum used small circles of varing sizes and it took on the appearance of bubbles. I loved it.
And this is such a GREAT way to make a visually stunning wall! Using left-over cardboard cylenders is so clever...and with the holidays coming up, this gives you a reason to keep those wrapping paper rolls! Gotta remember this. Via Growing Up Creative.