Oh dear lord...
... Do Miss Hilton's lady-friends own some?
Coat and scalf following in short order.
Google appears to be in a bit of a hurry to achieve its ultimate dark aim of indexing all of the world's knowledge, including humanity's entire literary output, as this image of an 1855 issue of The Gentleman's Magazine demonstrates: Google book scan showing woman's hand Quite what "Sylvanus Urban", the editor of this fine …
I know I should be coming up with a comment a la mode El Reg but seriously folks, they are finger grips. It's a thinner version of the rubber thimbles used by bank tellers to count large wads of cash and a more hygienic way of gripping paper than licking your fingers. And yes, it's the same material as condoms: rubber.