When you execute a proper bunker shot, your club doesn’t even make contact with the ball. Take your mind off of the ball by hitting small plastic toys, a tee, a used cleat, a mowed half-ball, your keys, or anything else you can think of. It’s fun and it gets your mind off of hitting the ball: you want to slide the club through the sand.
When you get good, borrow your friend’s Rolex and hit that out of the bunker, too, landing it just in the fringe. You may want to wrap it in a plastic baggie to keep the sand off of it, but then again, it is your friend’s watch, not your own. 🙂