One of the revolvers, the one with the brass frame on the lower left is a cheap replica of an 1851 Colt .36 cal cap 'n ball pistol from Cabela's and the one with the ivory grips above it looks like an 1880s Otis .32 rimfire revolver.
Oh, and that’s not black powder in the round can on the table, it is Pyrodex, a black powder substitute.