So I recently received an order of feeders for my snakes and because of where i live i need to order and have the feeders shipped with dry ice. I've never had a problem with them being frozen upon arrival before but this last shipment i just received was fully thawed, and i'm unsure as to how long exactly they may have been thawed for, worst case being a day and a half, best case a half a day. I'm wondering if it's still possible to use these feeders after re-freezing them or will rot have set in and if they are just garbage?

Any tips on how i might be able to salvage some of the feeders would be great as i'm looking at $200 worth of feeders that i may have to throw away!