You should sell those - they would go like hotcakes!

I've been nagging my husband to make the "ultimate" cat tree/climber thingie for ours someday when he's got extra time on his hands. However, that time has not come yet. We have a couple of good tall ones, but they're so expensive we want to be crafty and come up with our own awesome version at a much lower cost.

Where do you get sissal rope? We have a couple of cats that just love scratching on the sissal section of the 5.5 foot tree and on the short sissal cone scratcher we have. Is Home Depot or Lowe's a good place to look for materials to make cat trees?