My kids loved British Bulldog and Asteroids. Do British Bulldog with pucks too, where the bulldog has to knock the puck off their sticks.
Other favorites:
Obstacle courses. Especially ones where they have to superman slide under a stick.
Freeze tag. A buddy has to skate a tight circle around you to unfreeze you. I always thought they'd be sick of freeze tag, but they loved it. There was also a variation of tag that I never got to try - pair them off and have one chase the other in a limited space, blow the whistle and then the chaser switches to chasee - good for learning to change directions fast.
Also, any drill becomes funner if you make it a race.
