I have about six scatted about the house using old VHS tapes as building blocks
with solid wood as shelves. Look quite cool and as yet (touch wood) no accidents.
(VHS tapes are given away free in a lot of junk shops.)
I got the idea from a kids programme but they wrapped the VHS boxes in
brick paper that you can buy from model shop, they looked better but I
cannot be bothered wrapping up VHS tapes.