Thanks for your input! Recall relays are fun.
Here's a few more ideas:
For dogs who can do a down on recall, the leader puts a $5 in the middle. If you can drop your dog's chest on the $5, it's yours. (Nobody was able to do that one.)
Another good one for the down on recall is to say a nonsense word instead of saying "down". A nonsense word is a two or three syllable word like banana or bingo. If your dog is really listening for the command, he/she should continue coming into you. Some aren't listening for the command; but drop because they hear your voice.
Lassie says-played like Simon says; but if the leader doesn't say a command preceded by "Lassie says" and you do it, you're out!
I also had them rev the dogs up with some playing and then give them a command to sit or down. You could just see the enthusiasm in the dogs.
Instead of doing our usual heeling practice, I asked everyone to pick up their pace and really put themselves into the performance. Dogs get more attentive and seem to have a lot more fun.
Obedience should be fun for you and your dog. Working together as a team is an awesome feeling.