This is a cool way to store your matches, in a decorative and waterproof container.
Cut a circle out of the sandpaper to fit right over the Mason jar lid. Trace the scratch paper over the jar using scratch paper, and cut that out.
Then, repeat the process with the scratch paper and sandpaper.
Apply contact adhesive to the sandpaper and lid, and attach the two, making sure the gritty part of the sandpaper faces up.
Fill the jar with the matches.
When you’re ready to use a match, just take one from the jar, replace the lid, and strike the match on the sandpaper on the lid.