Common tools for snorting cocaine are rolled up money bills, cut straws, pen covers, small scoops or spoons and long fingernails. Cocaine is usually broken up on a hard flat surface, such as a mirror or cd case.
Credit cards, razors and drivers licenses are common tools use to break up and ground cocaine into powder for insufflation.
Mixing cocaine and heroin into an injectable shot is called a speedball. These drugs have opposite effects on your body and are extremely dangerous when used together.