Kelly, sports training drills are specific to the sport being practiced.
I say this because you mention in your questions that you don’t have any sports specific training credentials.
Having said the above, here is what I suggest…
Whatever, “drill” you use to condition your clients, be sure it is specific to their goals. It it doesn’t make sense (at least from my perspective) to use drills that have no objective in mind. I understand that you want it to be fun, however, think about your end game. You always want to remember to make your workouts fun, effective and results oriented!