Ball pythons are well known to be picky feeder, the chance of an alternate prey is almost zero, additionally not only do they not need a variety in their diet but doing so will only make them even more picky and lead to long fast.
Finally I will say this
What YOU like here really does not matter what matter is what YOUR BP eats and accepts as a prey, if you are not willing to accommodate that then maybe a Ball Python may not be the pet for you.The first simply being that I would not like to feed mice
If you want a snake that east bug consider a Rough Green Snake.