Looks pretty easy to make, basket screwed to the top of a cat tree. I could use the big rope/twine that I purchased at Ace to go around the column. Then use the extra carpeting we have for the base & possibly around the round or square container we will use.
DO NOT PUT A GOLDFISH IN A FISH BOWL. And no, not a betta, either. Other than that this is pretty cool and ill have to do some of these and post them on my youtube channel http://diyprojectsforteens.com/diy-projects-pets