Oh, I see. Tell him good job! I never would have thought of the eyelet screw. If he doesn't mind, take some cheap one inch masking tape to tape around the float, then paint. It will leave a nice clean line.
Good idea with the wood glue. Again I never would have thought of that. My boat builders experience, I'm always using boat builder's epoxy for most anything wood related. Simple wood glue is a great way to save time and it's waterproof as well. At least I've seen certain types of waterproof wood glue.
It's cool he can bring his own experience to these and make them better.