This should be a simple project for someone with an imagination and artistic talent. For myself, I can't draw a stick man, but I do have an idea that I think would work well as a tshirt design. I actually have a piece of clip art that would suffice as a crude example to get started with and I'll send it to you if and when necessary. Basically it's this: I want to depict Christ with outstretched arms nailed to a cross but no cross in the design-just the figure of Christ with arms outreached and the presence nails in the hands as well as the feet. It really doesn't have to be drawing- maybe just a sketch or outline with the fewest lines necessary to convey the idea. (Brevity is the soul of wit.) And then somewhere in the design a caption consisting of four (4) words [16 letters]. That's all!
Another important detail is to limit the colors to three (3). I intend to screen print this design and I wanted to first keep the cost low and the idea simple. If, in your opinion, it's absolutely necessary to use four (4) colors, then I guess it's okay. Acually, it could be done in one color, but I feel a few colors would add some realism to it and make it look less like a piece of clip art.