It's been awhile since I posted, but I wanted to share that my hot dogs arrived fine. I sent them priority mail (3 days to Hawaii) instead of express (2 days to Hawaii). I couldn't fit the mustard in the box and forgot, so I shipped it separate. The problem was the pickup was happening at 1PM. She said she'd make sure the hot dogs got on that truck, but I couldn't package and fill out the address in time to get the mustard on that truck, so it left at 4:30PM. The difference in time is the hot dogs got there in 3 days, mustard in 5 days.
I was !just! able to fit 12 hot dogs and some gel packs in a large box and it was bulging a bit.
I froze the dogs, I think I fit 6 in a large zip lock bag. I froze the gel packs and put them in zip locks as well. Layered them, gel, dogs, dogs, gel. I couldn't fit any more in. Around that whole thing I wrapped a plastic bag and taped it up.
I should have sent them express, but it was $39.95 opposed to under half that Priority.
The dogs arrived, thawed out, but they didn't feel hot as if they were sitting in a hot truck somewhere. My Mom ate them and she's still alive.
The dogs arrived on a Thursday and her Husband called and said "What are you having for lunch?". He never calls and says that. After the phone call my Mom realized he was hinting if the hot dogs came or not. He got home that night and didn't want to eat them until the mustard arrived.
Next time definitely express.