Where can I get a plastic sweet jar from?

I really need a medium sized plastic jar that is obviously empty but I don't know where to get one from... Have you guys seen those sweet jars that are already filled with random sweets which are in debenhams and/bhs? i want to make one of those but only fill the jar with my boyfriends favourite sweets but I can't for the life of me find a decent sized jar to fill!!! Any suggestions? p.s. I'm tight and refuse to buy the pre-made jar of sweets because i can do it cheaper!