The following is taken word-for-word from a Mormon pamphlet, "For
 Young Men Only", published about 15 years ago...

The Mormon's Guide to Avoiding Masturbation:

1.Pray daily. Ask for the gifts of the spirit which will strengthen you
against temptation. Pray fervently and out loud when the temptations
are strongest.  When the temptation to masturbate is strong, yell "STOP"
to those thoughts as loudly as you can in your mind.  Then recite a
portion of the Bible or sing a hymn.

2.Set a goal of abstinence. Begin with a day, then a week, a month
and year. Finally, commit yourself to never doing it again. Make a
pocket
calendar for a month on a small card. Carry it with you but show it
to no one. If you masturbate, colour that day black. Your goal will be
to
have no black days.

3.Set up a reward system. Each time you reach a goal reward yourself
with a quarter.

4.When on the toilet or showering, leave the door partly open. 

5.Avoid people, situations, and pictures and reading material that might
create sexual excitement.
 
6.Use physical restraints.

7.Wear pajamas that are difficult to open, yet loose and not binding.
Put on several layers that would be difficult to remove while half
asleep.

8.In severe cases, tie your hands to the bed frame.

9.Be aware of situations that depress you or that cause you to feel
lonely, bored, frustrated, or discouraged. These emotional states can
trigger the desire to masturbate as a way of escape.

10.To cancel the pleasure of masturbating, associate something
very distasteful with the act. For example, imagine bathing in a tub
full of worms and eating some of them.