FLARP Noise Putty and Whoopee Cushion (Gross Noises Gag Set) Two ways to have disgusting great fun! Set includes a 3.7 oz container of FLARP and a classic Whoopee Cushion. FLARP noise putty is truly disgusting! Poke it! Squish it! Once you push your fingers into this specially designed goo, it makes fart noises! Surprise your friends with this classic WHOOPEE CUSHION. To use, simple inflate then hide under a chair cushion and wait for your victim.