These I saw in the window of a shop on the island of Murano, where fancy glass comes from. Admittedly, these are not the fanciest glass but the effect in the window is nice. I tried to explain in Italian that I too made hot air balloons but out of paper. She did not seem to understand or care. It was very hot and there were a lot of tourists. But, being an island made of canals, like Venice, you are always on the water.