This is Cuppow – a new lid that lets you drink like a boss from virtually any wide-mouth canning jar. It’s a simple, eco-friendly alternative to poor-performing and messy disposable hot cups, and over-built and expensive travel mugs.
Magnetic Spice Rack Using Mini Mason Jars This is an awesome idea if you’ve got stainless steel going on in your kitchen. Fill jars with spices, label them, and glue magnets to the lids. 41 Easy Things To Do With Mason Jars
YES! How to turn a mason jar into a spillproof / bugproof cup with straw.we use mason jars for all kinds of things, including drinking glasses. I've seen lids with straw hole but they are expensive. I poked my own holes and they rust. I'm trying this!