Does it cost money to donate two Guinea pigs and the cages and all that it comes with

It does not cost anything to relinquish pets to DDFL. Just take them to the intake part of the building and they will check them in.

There is no charge to surrender a pet, but please don't do that. You are contributing to the problem of overcrowded shelters. I'm sure the DDFL is great compared to other shelters, but pet life in shelters is not great, and pets in shelters are usually miserable until they are adopted IF they even get adopted. Do your research on shelter life.

No there is no cost to surrender or donate