For those who love wine so much they want to be reminded of it whenever they look up, the wine cork "hanging ball" might be a good project to start with.
I gave it a whirl. The original directions called for a 10" Styrofoam ball but since I was limited on corks (if you can believe it), I opted for a 5" ball. I also needed a glue gun and some wire chord. I tried to replace the wire with a screw eye hook but the ball was too heavy for that -- so get some wire.
This was a pretty easy project that only requires a few hours of your time. But with about 70 corks, I still ran out before I was finished. In fact, you're looking at my finished product here, so just make sure you're prepared with well over 100 corks. Helpful hint: check out a nearby craft store to see if they sell extra used wine corks if you're running low.
Another one to try: the wine cork chandelier makes any dining room more wine-oriented.