Hi Sophie,
sorry for the delayed reply, I somehow missed your post...
I am a real carboot fanatic

And often I manage to find nice glass for little money. But not paperweights...
First, there seem to be rather few around; I was at a huge carboot today, with several hundreds of sellers, and saw a total of perhaps 5 paperweights (mix of Chinese, Czech/Bohemian, one by Eisch).
Second, almost any paperweight I ask the price for, will be too expensive (for what it is).
But I won't give up yet, I haven't started but a few weeks ago to look closer into the matter

Michael