Not a kit as such, but put together there’s a lot of stuff around the house that could come in handy:
flashlights, including one lantern-battery size
candles, over a dozen
two kerosene lanterns w. fuel
scores of match books everywhere
ditto disposable lighters
camp stove with propane tanks
patio grill w. large propane tank
spring water in gallon jugs, usually a couple
diet soda 2-liter bottles, usually several
shelf storable food in cans, bottles and boxes
picnic utensils
tent, sleeping bags, folding cot, rain ponchos, picnic coolers
sunscreen, band-aids, gauze pads, adhesive tape, ace bandages, tylenol, antiseptic, topical antibiotic, etc.
battery-powered radio, pocket knives, buck knife, hacksaw, bow saw, axe, sledge hammer, gasoline container, crowbar, 18-inch length of steel pipe, 18-inch wooden club, handgun & 20 hollowpoints.
And probably more stuff in our attic, basement, garage and kitchen cabinets then I can even think of right now, which would include a lot of handy stuff.