This is a spell component pouch I made for a friend of mine.
He came to me with the glass tubes, and told me he needed a pouch made for fast retrieval of his components for spells.
This didn't take long to make, the way it works is you grab the tube, and pull it backwards through the loop, allowing you to carry them in a convenient and easy to grab area. The loops are made tight, so they do not merely slip out and shatter your precious 100g piece pearls to the cobblestone floor of your local city street or dark dungeon.
The Pouch attaches at the top via a belt loop on the back, it is made of only two pieces of leather for durability. No one wants a ghoul yanking your components off your belt, unless you have Eschew Materials anyway.
Note the used tube entitled "Heal" Aparently Torvald ran into some trouble on the way to my place so I could get this picture.
This pouch is wore on Torvald's belt, which has everything from scroll cases, pipe pouch, tome pouch, several bags of holding and a skin of Mead. His belt must weigh 40 pounds, no wonder mages and wizads can't wear anything heavier than cloth.
Torvald The Unclean's Staff can be seen in my Gallery as well.