some one want to help?

im wanting to have shirts made for my shop but im looking for a design for the front.im going to put sayings around the design but im looking for one design with a truck and one with a car dragging. there going to be screen printed so think of it as vinyl stickers let me see what you can do. I want a decent design so people will wear them i will giving them away but still want something people will wear

THANKS