A clinic to teach special teams.... I have heard it all now !
If your kid is pee wee age or older and your coach is not dedicating 1 entire practice a week to PK and PP then you you are overpaying for your hockey !
Let them have thier skills night, one practice for small area games or battles and transitioning the stuff they learned in skills to game type situations and then one practice primarily for PK and PP scenarios.
sprinkle in some specific skill type stuff, like rebounds, tips drills, collecting passes off the boards or in open ice and then some shooting drills for players and goalies.
and a good coach should be able to combine about five of those things listed above in 1 drill and teach the fundamentals of forwards and Defense at the same time.