Try charity shops, lots of different candle sticks placed together would look more interesting than just, say one identical one on each table. People could then be encouraged to take them home afterwards as a reminder. I take it that they're for a party, wedding or similar?
Sorry, posted this and then went off to do something and forgot to come back! Thanks for the answers. It is for a wedding, I was looking at hiring them but they seem quite dear so I was wondering if I could buy them fairly cheap and then sell them after the wedding to recoup some money!