Wrap it with Twine. You can decorate mason jars in endless ways but these twine ones make stunning centerpieces. Here is the DIY mason jar twine, but feel free to adapt it to add lace, doilies, even chalkboard paper
Centerpiece idea - Carolina Charm: Hitched: The Reception; lovely clear glass/mason jars with flowers/candles
flowers in clustered mason jars, held together with a ribbon. Cute idea for entry table or around accents in reception area. Like these flowers but perhaps in something other than mason jars.
burlap wrapped mason jar centerpiece - great way to save money, just use any ol' vase or jar around the house.
34 Sparkly, Glittery DIY Crafts You'll Love
At Home with Blush
I love mason jars! Place a pretty pair as a centerpiece at your wedding! Painting them to match your color scheme or keeping them together with a personalized ribbon are great ways to add some character to the small things: by BeachBlues
Yosemite Wedding by Beaux Arts Photographie
DIY: Painted & Distressed Mason Jars Tutorial - acrylic paint, sand with a nail file, finish with a water & scratch resistant spray. for my coffee table. SO DOING IT.
Burlap wrapped vase with peach garden roses centerpiece for Audrey