When you lose something small like an earring or a pin odds are you aren’t going to find it. I know - it sounds kind of pessimistic. But it’s near impossible to find what amounts to a needle in a haystack!
Louie Jerome from Gomestic has an interesting solution:
Cut the leg off some old tights (pantyhose) and put it over the nozzle on the vacuum cleaner. The suction will lift up the lost object and leave it stuck to the fabric.