Here's what rhymes with lunchpail.
pale tail tale jail bail bale dale pail detail male fail mail sale sail trail nail rail veil gale hail shale whale stale vale wail hale braille kale faille wale scale avail entail frail email assail curtail quail snail flail quale bewail derail pigtail topsail unveil grail impale bobtail hightail prevail travail inhale gunwale mainsail ponytail monorail taffrail wassail pellmell hangnail lugsail carrell exhale countervail foresail martingale nonpareil swallowtail fingernail tattletale