[boobquest2012]

I'm not sure what kind of volume you are looking for, there is a picture of some cups I found on ebay next to NB CL and XL. They are much more narrow but longer. They get great suction from the built in silicon pad as well. Here is the link for them I have the large ones (C to D) but there are also smaller ones too. They work with the NB pump as well.

http://www.ebay.ca/itm/BREAST-ENLARGEMENT-BUST-VACUUM-PUMP-DUAL-CUP-with-Freedom-Connectors-C2D-/180872275957?pt=LH_DefaultDomain_0&hash=item2a1cd3e7f5&_uhb=1