I got 2x socket earrings and one socket necky in one day, within 10minutes or so from eachother.
My friend also did almost the same thing, twice: One day he got 2x socket neckies, and one socket earring, and about a week later he got 2x socket boots and 1x socket ring
It is possible to make more than one socket in one day, but it's not very probable

Soo.. dont be dissapointed if u dont make more than one in one day.. one socket in 400mets or so still pays off :>