I loved making this. It came about because my Dad has a huge stand of black bamboo. The whole thing is made using unbleached calico plus whatever I found or had... I love calico (we Aussie's call unbleached raw cotton calico, not the floral stuff). It's quite big, for a one and a half year old, but you want to be able to use it for some time, and fit some friends in (or Daddy).