Present for a christian

This is what made for a christian teacher on graduation. I had glued some stones onto it as far as I can remember, but no photos unfortunately. I made a shape out of wax and covered it with gypsum. Instead of melting the wax, back then I broke it out and thus loosing a lot of detail that I had to rework. Then i poured tin into the mold creating that christian cross. I was always questioning his belief, so he said that upon graduation he would give me a big wooden cross as a joke. I took it more serious than he did.