Hi and welcome!

Your pieces do appear to be Italian, I would think that "Camer Glass" might have been the name of the shop where they were bought?
We don't really do valuations here - they're far too subjective, but I would think the lighter is what is known as "Facon de Venise"; and by a good maker (possibly one of the Salviati's or a Toso) and may have some age to it. It might be worth a little bit, if the condition is good, but don't contemplate retiring. Maybe a nice meal out.

The other two bits are nice enough, but not worth very much.
I'm not an Italian glass person, there will be somebody else who knows a lot more than I do along soon enough, who will be able to tell you a bit more than I can.