Pinhole rhymes with:
buttonhole, manhole, pigeonhole, blowhole, buttonhole, cubbyhole, foxhole, keyhole, loophole, manhole, mousehole, pigeonhole, posthole, pothole, sinkhole
Pinhole sounds like:
pamela, pamella, panel, panella, pannell, pannill, pannullo, penal, penile, penley, pennel, pennell, pennella, pennywell, penuel, penwell, phenol, phenomenal, phenomenally, pineal, pinelli, pinnell, pinola, pommel, pownall, pumilia, pummel, pummill