Band T-Shirt Design

This design is for a band called "4 on the Floor". They play classic rock music like Jimi Hendrix and Grateful Dead songs. I am looking for a fun design that is fun, cartoon like, and a little psychedelic. I envision a cartoon 4 sitting on the floor, but I invite the coder to use their imagination. The design will need to be a single color and will more than likely be printed on tie dyed shirts. The design should be created 9" x 12.75". This can be done either vertically or horizontally. Design Formats Preferred: Adobe Illustrator (We will also require EPS formats that we can open in CorelDraw for the t-shirt designs).