Historical clue formulations

• Model airplane material — 2026-02-10
• Wood for a kite — 2025-07-16
• Wood for a model airplane — 2025-02-10
• Model material — 2024-07-21
• Wood used in some surfboards — 2024-07-04
• Light craft material — 2024-06-13
• Light wood — 2024-03-31
• Model airplane material — 2023-05-30
• Model material — 2022-07-10
• Model's makeup, often — 2021-05-28
• Light wood — 2020-11-17
• Lightweight wood — 2020-02-07
• Wood for crafts and rafts — 2019-09-22
• Raft-making wood — 2019-02-26
• Wood for a raft — 2018-12-23
• Material for Thor Heyerdahl's Kon-Tiki — 2018-10-31
• Makings of a model? — 2018-01-11
• Light wood — 2017-05-07
• Model material — 2016-10-22
• Raft material — 2016-06-26
• Wood used to make surfboards — 2015-10-30
• Wood for model airplanes — 2015-07-27
• Material for a float — 2014-11-08
• Model material, often — 2013-02-24
• Makings of a model, maybe — 2012-02-04
• Buoyant wood sometimes used in rafts — 2011-02-28
• Model glider material — 2010-07-28
• Light wood — 2009-02-10
• Kon-Tiki material — 2008-09-21
• Light construction material — 2008-08-29
• Wood for a model plane — 2008-06-16
• Rafter's wood — 2006-12-31
• Model material — 2006-07-13
• Raft wood — 2006-01-10
• Raft material — 2005-10-20
• Model wood — 2005-08-09
• Model builder's wood — 2005-04-11
• Raft wood — 2004-12-15
• Model material — 2004-08-08
• Raft material — 2004-04-22
• Craft wood — 2003-12-17
• Model material — 2003-09-21
• Corkwood — 2002-05-08
• Raft material — 2002-03-21
• Tree similar to a cottonwood — 2002-02-02
• Raft material — 2001-11-04
• Model's makeup, maybe — 2001-10-07
• Modeling wood — 2001-08-28
• Raft material — 2000-09-20
• Light wood — 2000-08-06