Ball python and small rats

[West Coast Jungle]

you may also want to try the "shake and bake" method.

place the rat in a bag with the substrate from rats ( containing poop and so on)
give a nice coating to the rat with a few small shakes
place rat in with the snake ( wait at least a week from last feeding)

the snake will smell its normal prey and go for it

You mean substrate from mice. Another way is to put some bedding from mice in the cage 15 minutes before you introduce the rat. That way he smells mice and when the rat is put in he thinks it's a mouse and hits it. Some guys never switch over. Good luck