I buy all my lives either from a local petshop or petco. I try to avoid the local shop because I disagree with how they keep their animals. Pretty dirty.

I've had virtually 0 luck on getting my snake to switch over, he's coiled and struck one but then left it alone after he was done. Best of luck on it though c: will make feeding a lot less stressful for both you and your snake if you can get em on already dead ones.