Yeah, I know it's awesome! A crochet covered hula hoop. I used random bits of yarn that I had around and went to Home Depot where I found a ten foot length of 3/4" tubing and a 1/2 " coupling to make it a hoop. I reinforced the seam with some duct tape. The crocheted tube is open where the ends meet and it will stay in place with use. If you are interested in hula hooping or making your own hoop there are so many great resources out there. Many of which I just found by googling "hula hoop."
Now, I just need to practice hooping now that I finally have a hoop : )