I use repurposed glass in my art. Glass is such an amazing medium. I admire those who can actually create glass. There is an Etsy group of these wonderfully talented artists and I encourage you to explore their wide range of skills. Visit http://www.cgge.org/ when you have some time to explore. Their glass is not churned out in a factory - it is handcrafted art.
Hummingbird fact for today: The Ruby-throated hummingbird, most common in the US, weighs about 1/10 of an ounce (just over 3 grams), about the weight of a dime.