Glass Noodles are easy to make at home. You can buy Bean thread noodles in packets with a broth packet or in bulk packages. Often the bulk packages are in pink netting and very inexpensive. They will be labeled as Chinese vermicelli, rice noodles, or bean threads, or if from Thailand they are called woon sen.
They are available in similiar packages as Top Ramen in most Asian markets. Here is an easy to make at home Wunsen/Woonsen soup recipe:http://www.bellaonline.com/articles/art45325.asp
If you buy the individual packets one packet will serve two as a first course or one as a lunch. You can add diced veggies such as mushrooms, onion, and protien such as lobster balls. I love the Thai lobster balls which when boiled in the soup broth prior to adding the noodles become very light and fluffy.
Many fish balls from China have a rubbery consistency which you may or may not "love".
These rice noodles are very popular in Thai salads as well like Yum Woon Sen Gai (Bean Thread Chicken Salad).http://www.bellaonline.com/articles/art63553.asp
Hope you give this easy wonderful soup a try!