According to
this webpage from Norwegian TV2 (it's in Norwegian, but there are pictures) there is hope for those of us who wish for an abdominal six-pack without the hassle: Self tanning spray!! The results are (in the side by side comparison the real one is to the left) … interesting.
pibbur who fears that for many (of us) this approach may be futile, given the general curvature of the area. A few horisontal shadows is not enough to fool that part of the public we would want to fool. Spraying on a ventral hernia lookalike might be more useful.