I saw a couple on Animal Planet (?) that had 'going home' parties for every litter!!
they alway's celebrated the pups finding wonderful home's- and starting life in their new homes!
Everyone had so much fun- and made it a very special day for the new parnets and the breeders
I know it is hard to let the babies go, but you know you have great homes for them-
and there is no better reason to have a party!
It is up to both of you- but I think it is a great idea!
And it might just be the thing to bring smiles to them being gone- instead of tears!!