Here is a goal: Keep a fresh jar of garlic covered when the lid is lost.

Which way makes more sense to accomplish this goal?

*Just blow up a balloon and hold it on the surface of the top of the jar.while applying pressure to keep the balloon in place let go of the air.the balloon will mold itself over the top of the jar/.l; *Cover the jar to keep contents fresh.;
Cover the jar to keep contents fresh.