Murano Glass Store Venice
If you don't want to travel all the way to Murano there is a factory glass blowing demonstration at Vecchia Murano studios that is very nice and accommodating for individuals not on a tour. The demonstration is approx 8 minutes and then take a walk through their showroom to see and purchase if you so desire....they will ship and insure the piece of glass as well.
Vecchia is next to another Murano store that is owned by the same factory.....but we were not allowed to see a demonstration as it was only for the tours. Not very accommodating and quite rude. However the folks in the showroom were very nice.
We did buy a beautiful piece of glass and had it shipped home.