This is an intriguing idea and I think I will give it a try. Thanks to the contributors at Riot 4 Austerity.
I have the foam core, the pennies, the paint and the plexi. There is nothing to stop me but determination. It will have to be another day because there is no sun, it is pouring rain and I have a moat outside my door. Rain is a precious wonderful thing so this is not a complaint.