Heres the green way to turn a canning jar into a travel mug! The Cuppow regular mouth canning jar lid fits right on top of the jar. You just unscrew the jars ring, replace the seal with the Cuppow lid, screw the jar ring back into place, and voila, you can enjoy spill-free sipping while on the move or at your desk. Its made in the USA of BPA/BPS-free rigid plastic. Product and packaging are 100% recycled materials. $9 value. (www.cuppow.com, www.facebook.com/usecuppow)