This drill is an excellent way to teach discipline, foul shooting under pressure, and when very tired.
Players line up on end line and each take a turn going to the foul line to shoot two free throws. If the player makes both then the next player goes to the line. If any player misses one free throw, then the entire team runs a killer drill. The same player who just missed the free throw must now return to the line to shoot two more free throws. The drill continues until all players have made two consecutive free throws.
Foul shooting while tired and under pressure
Entire team

The basketball drills are licensed under a Creative Commons License.
TLC: Pål Degerstrøm 2000-2008