A friend has a very nice plaster cast mask (one of the Three Graces) which he wants to mount on a bronze shaft (abut 20mm dia.)on a wooden base. The mask is about 250mm high and is hollow at the back. I take it is plaster of paris. We discussed various ways of attaching the shaft and cross bracing it but weren't sure what would stick metal to the plaster. Anybody help please. One thought would be to hold the shaft in place in some way and just fill the cavity with foam.
Rob