Here at Dog Fouling and Red Rubber bands, we have seen many examples of colourful and subtle signs designed to reinforce the dog fouling message. It must, however, be said that, sometimes, "route 1" is the way to go.
While out today, this sign leapt out of the wall. It is large and obtrusive. It is also in a car park so I'm not sure where the fouling would take place unless the very small area with some shrubs keeps getting hit like there's no tomorrow!
This isn't pretty and it isn't artistic but it makes the point and is worthy of inclusion on this blog.