The frog I designed for Warning Zone earlier in the year (see here) has been given the 'graffiti' treatment. The company who actually sprayed the artwork on the wall are called Urban Canvas and they've done a great job! (Their site link www.urbancanvas.co.uk)
He now appears proudly outside their building at 30 Frog Island in Leicester. Check it out if you're driving by or check out Warning Zone's website at www.warningzone.org.uk