"Handmade instrument bought in Germany (70’s-80’s). I wonder it’s traditional item or something made just for decoration"
A: "It’s a Diple. Diple, dvojnice or dvojanke (pluralia tantum), a traditional woodwind musical instrument in Serbian and Croatian music."
I like the Skull on a chain.
no it not, that dish would hold entirely too much wax for a seal, it it more than likely an aromatic oil burner.
https://www.amazon.com/Skillet-Warmer-Burner-Country-Primitive/dp/B00JL2O2TI
something similar to that.
It's a melting pot for lead, shaped for easier
pouring into molds.