The no-contact door opener [Amazon] is a small brassy tool that levers open door handles, can be used to press buttons or as a stylus for payment systems, and is solid enough to subdue hysterical disease-spreading anti-maskers in grocery stores. It's small enough to fit on a keyring and has a wee hole for that purpose. There are many variations on the design to be found, but the one linked above is best because it's metal and many are just flimsy painted plastic.
I ordered three six-packs and that's what everyone's getting for their birthday this year.