Players are divided up equally at each basket
There is one shooter who shoots free throws while the other players line up around the free throw line
Each player takes two shots and rotates
If he swishes a shot, he gets +2 points
If he makes a shot but it hits the rim, he gets +1 point
If he misses he gets -2 points
Each individual adds up their own points
After a set period of time, there will be a single winner at each basket
Note: You can also make this a team competition as well pitting baskets as a whole against each other