Thank you for sharing that hadn't heard of it here.
Here is a pic I took in 2003. Would be interested if you or your friends can see any similarities with those found in your part of the world. What Sue calls a shield, well it may be, but it is also a 'Sun Face' a little bit like the little guys at the bottom and the guy on the left, use the zoom, has what I think may be a toy boat. Does it look familiar?