I bought these naked, and added gaffer tape I already own. With minis, gaffer is pretty much mandatory unless you want to break your house. Or cat.
I made my own minis about a year ago with HDPE 1/2in tubing. The polypro tubing is much easier to flow with. The HDPE is heavy and did do some damage to my mothers house, hehe. It's an arm workout from hell though! Which is just what I need. The polypros are also a workout, just not from hell.
Overall I'm very satisfied with the quality of my new minis. I ordered them from Hoops for the People, you can find them on Etsy. They have a various selection of minis, along with on body hoops.