Splice rhymes with:
kleiss, leiss, lice, slice, advice, berneice, bice, brice, bryce, buysse, concise, deiss, device, deweiss, dice, dise, dyce, entice, excise, feis, geise, geiss, gneiss, grice, guice, heise, heiss, hice, ice, kies, kleiss, kreiss, leiss, lice, matteis, meiss, mice, misprice, nice, nyce, overprice, precise, preiss, price, pryce, reiss, reprice, rice, schweiss, slice, spice, stice, suffice, theiss, thrice, tice, trice, twice, tyce, vice, vise, weis, weiss, weisse, wice, wrice, zeiss
Splice sounds like:
sables, sabol's, savalas, scofflaws, scuffles, shapeless, shovels, showplace, shuffles, siebels, sivils, sobil's, sobils, soboleski, sobolewski, sobolik, spellacy, spells, spill's, spillage, spills, splash, splashes, splashy, splices, spoilage, spoils, squabbles, subhlok, sublease, suffolk, supplies, supply's, swivels, syphilis