This seems like one of those do it yourself classes that you might find at your local hardware store:
Instructor: “It’s going to be hard to find mice that are naturally yellow. So I recommend picking up a can of True Value 14A7 Rising Sun colored paint from aisle 7. I also suggest having a bunch of these little mice on hand too. Those tasers occasionally shock the little critters and then your child will have to forfit the battle. You might want to name them all Pikachu as well. It will just make things easier.”
One last thing, does the Poorke in Poorkémon remind anyone else of Parkay or is it just me?
Parkay Margarine Commercial (1983)