Ugh. Dr Browns replacement parts?

[crl]

I need the inside parts--the tan valve thingie and the clear straw-like thingie--for two bottles. Can't find them locally. And the shipping is like $5 everywhere I can find them online. At that point I'm just about as well off the buy whole new bottles from someplace like diapers.com or amazon where I can finagle free shipping. (Neither of those has the parts. Well, you can get them through an amazon vendor, but that means no free ship.)

Anyone happen to know where I could get these with free or cheap shipping?

Thanks,
Catherine