is there a web site to get them?

I bought something years ago and it didn't have all the pieces so I called the store that I bought it from and they opened another box and gave me the parts from it ( after showing my receipt proving I bought it from them) if they won't do that they may be able to tell you where you could write or e-mail to get replacement parts. Also if you still have the box or instructions you could possibly find the company's address or e-mail from that.