My first 2 bunnies when I was 11 came from a breeder. Next was Bugly, she came from a friend of mine who didn't like her.
When I was an adult, I first got Fluffybunny from someone who loved him but had no time for him since having a baby. Minnie-the-Minx, Timmy, Mrs Trippy, Harry, Miss Daisy and Heather all came from rescue centres, and Dudley came from a freead "free to a good home" and I figured that I had a better chance of knowing what constituted a good home than she did, so I took him in with the intention of rehoming him but...ummm...he seems to have stayed and hopefully will be getting a rescue centre girlfriend very soon!