That's The Spirit Porcelain Flask | Brass Monkey Goods
This personalized swing top glass flask makes a perfect wedding party gift for those groomsmen that like to have a good time. Holds 8.5 oz of your favorite spirit. This is the
Clear Glass Flask with Swing top, 8 oz |Specialty Bottle
Amazon.com | Eleganttime 8 Pack Pocket Glass Flasks 8.5 Oz Glass Vanilla Extract Bottles With Swing Top Flask for liquids,whiskey, liquor, wine, water Leak Proof: Flasks
Amazon.com | Bormioli Rocco Fiaschetta Glass 8.5 Ounce Pocket Flask, Set of 2: Flasks
Amazon.com | TOPZEA Set of 8 Swing Top Glass Flask, 8.5 Oz Clear Glass Hip Whiskey Flask Pocket Drinking Flask with Airtight Stopper, Easy Cap Liquor Bottle for Spirits, Beer, Brewing Bottle