residual

dreg(s), leavings, remain(s), residue, residuum, rest

leftovers

memento, remembrance, reminder

artifact

afterimage, aftertaste

balance, corpse, hangover, leftover, oddment, remainder, remnant, scrap, butt

odds and ends, pickings, refuse, scraping(s), stump

chip, flake, fragment, piece, sliver, splinter

ribbon(s), shred, tatter

end, fag end, stub

echo, ghost, relic, shadow, trace, vestige

excess, fat, overabundance, overage, overflow, overkill, overmuch, oversupply, superabundance, superfluity, surfeit, surplus

artifact

memento, remembrance, reminder

afterimage, aftertaste

balance, corpse, hangover, leftover, oddment, remainder, remnant, scrap

dreg(s), leavings, remain(s), residue, rest

echo, ghost, relic, shadow, trace, vestige