I have seen these style of bottle, can holder online but there were all to small to hold my girlfriends water bottle.

Place it on the board with one of the bungee straps to hold it down.

So i made this one to take a 80mm bottle.

I used fussy skin to give it grip so it reduces down to 79mm.

This one was printed in PLA. 

I have made others with ASA. 

With 15% infill so it floats if dropped.

Just re scale it to fit what every you want.