Making roads, bridges and tunnels...surfaces

I'm readying myself to make a bunch of stuff for the landscaping and I realised that I need decent stone surfaces for roads etc.

Buying this stuff readily in Sydney is pretty hard and when you do find it, it's quite expensive. Why not use by Canon bubblejet and some matte photo paper and just print exactly what I want?

Google to the rescue...

I did a few searches on Google for Cobblestones and so forth on the Images section and found these:

I then used them as textures to fill rectangles in MS PowerPoint and produced this sort of result (PDF).