21. Last Chance -

: In an Instructables guide for making a matching knife handle and sheath, "Step 21: Last Chance" serves as the final warning to check all components before permanent gluing.

: "21 Last Chance Qualifier" is a competitive tournament format, often requiring physical decklists for paper-based play. Technical Guides 21. Last Chance

: An article in The Ecologist published on March 21 refers to an IPCC report as the "last chance to secure our survival" regarding climate change. Pop Culture & Media : In an Instructables guide for making a