I have some similar shaped things - to the piece in your first picture - that jp once told me were Muranese - they're coloured with gold flecks - and I thought possibly for cocktails, but really not sure.
Of course, perhaps they're just decorative pieces. This straight sided funnel shape makes me think of 'deco' Martini type glasses.
Didn't they knock out shed loads of b.e. - I have a decanter, finger bowl in u. for small people/small fingers and small desert bow in u.
Presumably b.e. wasn't made by any other factory - or was it do you know?