My cats wear my collars. They are strictly indoor cats, but have been known to knock out the window screens and go on a walkabout SOOOO they wear collars 24/7 with tags that read "I'M AN INDOOR CAT." Brats... lol
Anyhoo. My cat collars are nylon-based with breakaway buckles, and yes, I do make them myself. I've never had any luck with the stretchy-elastic kind personally, but I know many who swear by those with their cats.
My boys probably pop their collars off once every couple of months, usually by wrestling with each other, I think. Ticheli will actually bring his collar to me if he loses it so I can buckle it back on him.