We'll the Ti flask kit was NOS at a bike jumble for $3.

Today's online China line bike emporium is like those old JC Whitney catalogs but no shipping or tax. Lol

Bet they might throw one of these in a package deal.
https://m.ebay.com/itm/6-sound-Bike-Bicycle-Super-Loud-Electronic-Siren-Horn-Bell-Ring-Alarm-Speaker/