Old sewing machines in interesting cases have a fairly good market among two groups- hobbyists who want to sew thicker materials, and those who take out the guts and than use them as occasional tables.
Amazing what people use as decorative items.
"Pigs" (ceramic or metal bed or foot warmers), mouse traps (the antique cage type- they sell for up to $50), old toys (some worth in the thousands), and Britten or other discontinued toy soldiers etc.
Interesting bookends in bronze, Pullman or other RR hand towels (any RR memorabilia), old lamps, interesting signs.
You name it, even old fire extinguishers and gas pumps (I have been watching the 'picker' shows on TV).