Thanks all for some fabulous work and interesting ideas. I'm torn between whimsical and serious. Generally, the woodcut or line drawn images are catching my eye. A cohesive image incorporating barcode is winning out over entries that look like graphics have simply been pasted on top.
One more image that might work.
Something similar to
http://www.featurepics.com/online/Corkscrew-Cork-1459825.aspxHave the image horizontal like shown, put the year on the end of the cork, just like we do. Have the bar code, go vertical (so it is at an angle to the cork). Maybe make the corkscrew itself gold to match the label gold.