English homework help...10 pts to best answer!?

i have to write a shakespearean sonnet in my english cl. it has certain requirements and one of them is that there has to be a pun or play on words. i have been trying to think of one for like 2 days and i cant think of one! does anyone have a good one i can use? my sonnet is about a broken heart (because it had to be about love) and how time drags on and how her heart hurts and she wants him back. so anyone with a good pun or play on words gets best answer. thanks so much!