Interesting. Roger is entirely correct. So I could legally burn the object, but couldn't legally sell images of it burning?
https://www.writersandartists.co.uk/...aw-for-artists
There's an interesting distinction here, though:
"Galleries and publishers are generally entitled to reproduce an artist’s work in order to help sell it – through advertisements, catalogues, JPEGs for emailing to clients and uploading onto their website – but they are not entitled to profit from reproductions of a work."
Which goes back to the money question: What if nobody's making money on the project?
Anyway, thanks to Roger, today I learned this: "A painting and the copyright in that painting are two entirely separate commercial entities."
Thanks,
Bill