R.B.
If there are any local college or High School players of those sports that are popular you could have them come and give autographs to the kids and talk about how they trained and such. Then you could relate how they had to focus to achieve their goals on how you have to focus on God.
Just a thought, probably inexpensive and if one of the people chosen is a big brother or sister there could be a lot of pride there.
R.