how would you measure the volume of a cork stopper?

answer:

Use a weight to hold down the cork. Find the volume of everything. Then subtract the volume of it's weight and water. You are left with the volume of the cork stopper.

(http://quizlet.com/385717/ips-quiz-bbq-flash-cards/)

(http://images.google.com.sg/images?hl=en&q=cork%20stopper&um=1&ie=UTF-8&sa=N&tab=wi)