Historical clue formulations

• Coconut Girl Scout cookies — 2026-09-28
• Certain Girl Scout cookies — 2021-06-26
• Some Girl Scout cookies — 2018-10-19
• Coconutty Girl Scout cookies — 2017-11-29
• Coconut-flaked Girl Scout cookies — 2015-06-08
• Some Girl Scout cookies — 2009-07-23