looking for a diagram comparing popular R/C scales
 

I'm looking for a diagram that compares popular R/C scales for surface vehicles, something like these kinds of graphics...


...has anyone seen anything like this online someplace or perhaps in a back issue of a magazine? It seems like it would be a useful tool for explaining the hobby to someone who's never seen it, since sometimes a photo you might be showing them lacks a radio or a hand or a foot or something else that provides a sense of real world scale.