Creative, but I highly recommend this one instead. Holds everything from a 40oz hydroflask to an open can of beer, thermally insulated, and it even has a cell phone pocket and loops for carabiners. Plus it doesn't take up precious basket space.

Check out this cell phone holder too I just bought. So sick that it holds my phone securely, charges it wirelesses, and even allows me to record my rides like a dashcam.