Beyond food storage, 40 ml glass jars have found a special place in the crafting community. Crafters utilize these jars for a variety of DIY projects, from creating homemade candles to storing beads, buttons, or other crafting supplies. The clear glass allows users to easily identify the contents, which is particularly useful for those with extensive collections of materials. These jars can also serve as decorative pieces when filled with colored sand, marbles, or seasonal decorations, adding a personal touch to home decor.