There's a lot of previous threads about mounting Morphs next to the water bottle. This clip from Performance works, but it's a bit too big. I glued a strip from an inner tube inside the clip, and that fits now. I don't remember if the clip came with a velcro strap or if I used an old one I had in my toolbox.

I got the mini-morph, which is a shorter length. The tradeoff is that it can't easily pump over 80-90 psi.