Need to create a character that has scars?  Try rigid collodion to achieve this effect.  Easy to use and remove.  Brush a thin line of rigid collodion on clean skin.  As it dries it will pucker skin to give the appearance of a scar.  Add more layers when dry for a deeper scar effect.  Peel off gently when dry.  Do Not Use to close to your eye.  Not recommended for children under 13.  Use in well ventilated area.  Includes brush.