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