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