All the thumbprint ornaments and Christmas decorations I've seen lately have led me to think about making a smaller version for a necklace. I love anything that helps me savor and preserve these precious years and moments with my little ones. So, I started researching ideas for thumbprint necklaces. There are lots for sale out there for nearly $150-$200...yikes! But there are also some DIYs out there. We tried a few styles and techniques this week...some were okay, others didn't work out at…