Grab a bucket and hit the range.
These games are all about entertaining ways to get out of the routine of just mindlessly pounding ball after ball down the range.
Horse
A golf version of the popular basket ball game. Grab one or more other people and play a game of HORSE. Pick certain shots, targets, or even trick shots that every person has to replicate. If you can't pull off the shot that you call, the next person gets a go at calling, and pulling off, their shot. If you can't match the shot, you get a letter until you spell out HORSE. Last player left is the winner.
Play a practice round
Pull out an old score card, pick your favorite holes from from the PGA Tour, or just make up you own. Picture the tee shot and try to hit it. Then, hit a shot into the green. If you miss your target, pick a point on the range to chip to. Give yourself a score and try to get around at level par. (Ex. If you pick a hole that's 350 yards, hit a 250 yard tee shot, then hit a 100 yard shot.) Try to pick out specific targets and even add in hazard and out of bounds penalties.
Around the world
Try to hit every target/green on the practice range. Go one at a time and if you miss, start over from the beginning. If your range doesn't have targets, make your own. To make it harder, start short and work your way out and back in again.