- two glass coke bottles (or others)
- thick-walled glass tubes (or other tubes, if easier to get hold of)
- grinder and carbide knife (optional)
- drill slightly smaller than tube diameter
- oil and vinegar
Cut corks to size if they won't fir bottles as they are. Cut an approximately 4-5 cm length of glass tube with carbide knife, and grind at an angle at the top, flat at the bottom, then make sure all sharp edges get smoothed. Drill corks at a diameter slightly smaller than tubes, then force tubes into holes. Fill with olive oil and balsamic vinegar - and never confuse the balsamic vinegar with coke!