Gel Flask Rack

When cycling or running, I don't like the waste of those single-serve foil energy gel packets so I buy mine in a 26-serving bottle. I then use the 5-serving flask to take with me. As soon as I get a new bottle I fill all my flasks and put them in the refrigerator. The flasks are top-heavy and never stay where they belong, so I modeled and printed this organizer tray.