An instrument
invention, contrivance, mechanism, tool, apparatus, machine, gear, equipment, appliance, medium, contraption, gadget, arrangement, expedient, wherewithal, means, agent, tackle, rigging, harness, material, implement, utensil, construction, outfit, article, accessory, makeshift, auxiliary, stopgap, widget, thingamabob*, thingamajig*, whatnot*, gimmick*, wrinkle*, thing*, doohickey*, whatsit*, whatchamacallit*; see also contrivance 2, machine 1, tool 1.
A shrewd method
artifice, scheme, design, trap, dodge, machination, trick, pattern, proposition, loophole, wile, craft, cunningness, stratagem, ruse, expedient, subterfuge, plan, project, plot, fake, chicanery, racket, game, craftiness, cabal, evasion, finesse, clever move, sucker trap*, catch*, joker*; see also discovery 2, method 2, trick 1.
A figure or scroll
slogan, symbol, sign; see design 1, emblem.