Temporary Tattoo

Purchase a few temporary tattoos (don't lie, you know you love them). Apply the tattoo to the area you are most likely to cut. The rule is you cannot self-injure until the picture is gone. When the tattoo is fully gone, you should be okay. Simply apply another.

This alternative can also be done in pen containing nontoxic ink. If you do it this way, you get to draw your own picture.

Tip: A temporary tattoo will begin to peel after a few days. Take this opportunity to pick off the flakes as a distraction if an urge to cut arises. If you do manage to get it all off in one sitting, apply a new tattoo.