The easiest way to hang onto summer? Hang a keepsake banner. Ours came together fast from postcards, ticket stubs, and a handful of shells.
Glue mementos to card stock, then punch two holes at the top of each card.
String the cards onto the twine, leaving space in between for shells, if you're using them. Working on a covered surface, glue the shells to the twine. Let the glue dry completely before moving the banner.