My grandmother has a gorgeous pair of blue and white porcelain lamps. She's had them for a while and said she bought them at an antique store.
She thinks they may have originally been vases that were turned into lamps at one point. She's tried looking up on the internet to see if there is anything that looks like them around, but hasn't managed to find anything.
I think she secretly hopes that they are valuable, not so that she can sell them, but just so that she can feel like she got a bargain.
I actually doubt that they are, which is why I haven't encouraged her to get them valued. I prefer that she keep her little bit of fantasy, since it makes her happy.