I have a frivolous question. Is there any way to use an image in lieu of points in gnuplot? For example, if I was plotting data about pasta consumption or something, I would have pictures of pasta (instead of usual gnuplot points).
Revisited 10 years later
Gnuplot 5.4 supports pixmap objects that can be placed within the coordinate space of a plot. See answer to gnuplot: Use an image instead of a point type