Not getting too cheesy I would go with a carpen ters star in his fav colors. Might want to stay away from floral unless you know he would be comfortable with them. The tools fabric would be good as long as it is not too kidish. You could also add other theme fabrics in if he has other hobbies. But go simple. Depending on size you could so the carpenters star in the middle and then log cabins around it. It is really up to you. Go with your gut. The fabric and pattern will speak hiss name to you. At least that is my experience.