Picnic rhymes with:
lipnick, micronic, papernick, bailiwick, balliwick, barwick, bestwick, bolshevik, broomstick, candlestick, capstick, chopstick, dipstick, eastlick, eastwick, elswick, fenwick, firebrick, gatwick, hambrick, hardwick, hartwick, hembrick, herwick, homesick, impolitic, joystick, keswick, krutick, kubrick, linwick, lipnick, lipstick, lunatic, marwick, micronic, morowick, nadgwick, nightstick, nowaczyk, pandick, papernick, pickwick, pitstick, politic, roddick, sandwick, seasick, shandwick, sidekick, slapstick, smithwick, toothpick, traczyk, traywick, triassic, uptick, yardstick
Picnic sounds like:
pachinko, pacing, packaging, packing, packinghouse, paging, pajamas, pasing, passanisi, passing, passions, pausing, peaking, pecanins, pecanins', pecans, pecking, peeking, pegging, peking, pezim's, phasing, physician's, physicians, physicians', picinich, pickens, pickens', pickens's, picking, pickings, pickins, picnics, piecing, pieczynski, pigeon's, pigeons, pigskins, pipkins, poaching, poconos, poignancy, poisoning, poisonings, poisonous, poisons, poking, posing, posnick, possessing, possessions, possums, poznanski, pozniak, psencik, psychogenic, psychokinesis, pugnacious, pushing, pygmies