Dagny, I have to say the vehicle kits are a great idea for gifts. You might want to include a Bandanna in a bright color, they can be found for under $2.
You’ve inspired me to put together a pocket sized survival kit for dogs for a couple of dog pals.
Ideas so far: Please chime in.
Gas-X
Antihistamine
Couple of pill pockets
vet wrap-- re-wrapped around a card
Gauze pad and non stick pad
spare leash made out of cordage
Vital signs card for canines
For containers, I'm thinking of either the witz container or the 1000 Otterbox.