I always end up using coasters and jar lids when I'm making circles for quilts or yoyo's and Plates and saucers to 'round' the corners! But then again I use a mason jar lid to cut out biscuits...and mason jars to hold popcorn, buttons and beads! I just LOVE old jars, I love recycling and I actually LOVE the primitive look! It's all about making do with what you have. It reminds me of that saying, "Happiness is not about having everything you want but being happy (content) with what you have." As my mother used to say..."make do with what you have."