I took a Pet Emergency class...and got EMT credits too!
This is what they recommended. Sorry if there are repeats.
Sterile gauze/dressing
3 % Hydrogen Peroxide
Adhesive Bandages (i.e. Pet Wrap)
Adhesive Tape
Rectal Thermometer
Cold Packs
Grooming Clippers
Artificial tears/eyewash
Penlight
Blanket
Antiseptic Cream
Eye dropper (to administer medications)
Tweezers
Scissors
K-Y Jelly
Quik-stop (styptic powder)
Rubber Gloves
Leather Gloves
10cc Syringe
Bulb Syringe