Beyond food storage, 300ml glass jars are ideal for various DIY projects. From creating decorative centerpieces to crafting homemade candles or bath salts, these jars can be transformed into beautiful and functional items for your home. You can easily personalize them with paint, twine, or labels to match your décor. Additionally, they can be used for organizing small items like buttons, screws, or beads—helping to declutter your space while still being visually appealing.