There is a store nearby that sells these. I am getting one for my father.
I picked up the soda can adaptors for mr. singular, who leaves open pop cans all over the place when he’s working. Those things are tricky to use until you get used to it - today’s cans are so frckin’ thin that it takes a few tries to figure out how to put it on the can without crushing it! They’re pretty slick once you get the hang of it, though.