Let him participate in more events where he might get more free bottles.
These things aren't intended to last long. And like most things in our consumption based society are just to be used, thrown away and get new.
If he thinks of it as a prize, then just put it on a shelf for display with a picture of him at the finish line, his number he wore and any thing to make it more a trophy.
The construction of the nipple looks more unique to that bottle than those I've used. Perhaps you might find a lid from some other unused bidon that fits if it's the color and wording on the actual bottle that he likes.
Last edited by Iride01; 10-06-22 at 09:24 AM.