| 2025-08-18 | Stubborn farm animal |
| 2024-08-01 | Cocktail served in a copper mug, familiarly |
| 2022-09-18 | Backless shoe |
| 2022-07-03 | Cocktail made with ginger beer |
| 2022-05-17 | Workhorse that's only part horse |
| 2021-04-13 | Symbol of stubbornness |
| 2020-11-09 | Farm animal that kicks |
| 2020-06-17 | Drug ___ |
| 2020-01-01 | Animal relative of a hinny |
| 2019-11-07 | Half-assed sort? |
| 2017-07-31 | Stubborn animal |
| 2017-03-20 | Pack animal |
| 2016-12-22 | Lounging slipper |
| 2016-07-16 | Drug smuggler |
| 2015-09-29 | 60-Down mascot |
| 2014-11-23 | Hybrid animal |
| 2014-08-03 | Pack carrier |
| 2014-07-21 | Stubborn animal |
| 2014-05-14 | Drug smuggler's courier |
| 2013-07-13 | Person taking drugs |
| 2013-01-20 | Grand Canyon rental |
| 2010-09-30 | Pack carrier |
| 2008-07-26 | Obstinate type |
| 2007-04-17 | Cart puller |
| 2004-09-20 | Stubborn animal |
| 2004-03-03 | Symbol of stubbornness |
| 2003-09-17 | Pack animal |
| 2003-01-27 | Stubborn beast |
| 2002-11-17 | Slipper |
| 2002-03-08 | Lounging footwear |
| 2002-02-11 | Stubborn beast |
| 2002-01-09 | Stubborn sort |
| 2001-11-18 | Bedroom slipper |
| 2000-12-14 | Uncooperative one |
| 2000-11-22 | Uncooperative one |
| 1999-08-29 | Plodding sort |
| 1999-06-30 | Stubborn sort |
| 1999-04-22 | One who won't budge |
| 1998-01-25 | Part of a wagon train |
| 1997-03-16 | Slipper without a back |
| 1996-05-14 | Stubborn one |
| 1995-03-06 | Wagon train puller |
| 1995-02-02 | Slipper |
| 1994-08-02 | Part of a wagon train |
| 1994-06-21 | House slipper |
| 1994-06-19 | Army mascot |
| 1994-04-04 | Obstinate one |