Three solid glass coffeepot ornaments / paper weights circa 4" tall

Boxed set of three solid glass polished base with air twist and coloured inclusions
Picked up today but where and who produced them?
I believe them to be made in China but they are difficult to identify. Sometimes sold as "Balmoral Collection"
Ours are in a grey satin lined fitted carton [Balmoral wares are normally sold in blue cartons]
They are whimsical