Historical clue formulations

• Thorny patch — 2026-06-29
• Kind of pipe or patch — 2026-02-04
• Pipe material — 2025-01-18
• Prickly plant — 2024-07-22
• Kind of patch that may create holes instead of repairing them — 2022-07-10
• ___ patch — 2020-05-09
• Pipe type — 2020-03-10
• Br'er Rabbit's hideaway — 2020-02-03
• Prickly bush — 2019-04-08
• Patch growth — 2018-11-23
• Hide-out for Br'er Rabbit — 2018-04-02
• ___ patch — 2017-06-15
• ___ patch (Uncle Remus setting) — 2011-03-21
• Prickly shrub — 2010-01-13
• Kind of patch — 2009-12-09
• Prickly plant — 2008-08-27
• Pipe type — 2008-08-20
• Kind of patch for a rabbit — 2008-05-05
• Pipe type — 2007-09-12
• Sticking point? — 2006-09-09
• Hare's habitat — 2004-05-18
• Pipe type — 2004-01-04
• Pipe material — 2002-10-15
• Thorny twig — 2000-12-16
• Kind of pipe — 1999-05-12
• Tobacco pipe — 1997-12-06
• Woody pipe — 1997-05-02
• Tobacco pipe — 1996-10-10
• Tobacco pipe — 1995-08-25
• Pipe root — 1995-03-12
• Pipe type — 1994-09-27