Yep that is pretty neat !
We use to use a coffee cans and put a roll of toilet paper in the can and soak it with alcohol,made a good hand warmer for a long while.
a Zippo works pretty food for starting a fire and does not take up much nor does 2 or 3 bics.
https://youtu.be/3_KYV7gvNls?t=1
interesting video above
When I used to be out in the cold a lot hunting I used something very much like this
https://www.basspro.com/shop/en/truetim ... lsrc=3p.ds
Kept 2 or 3 of the Chemical heat pacs in the zippered pouch along with a small Lockback pocket Knife ,a compass,a couple of lighters,and cotton gloves or mittens that convert to fingerless gloves,and a small cell phone
https://www.walmart.com/ip/HAND-WARMERS ... lsrc=3p.ds"
https://www.walmart.com/ip/Fleece-Flip- ... e/40705071
Hat to keep heat from escaping and a Long scarf to wrap around the neck.
Dress in layers so you can syart peeling off clothes as you get warmer ,for boots dont keep putting on socks until you can barely get your feet in as all that does is cut off blood flow and eliminates an air space for your body to heat up,
Just wear a boot that is a size or 2 larger than you normally wear and then put on pair of wool socks then slip on a pair of down booties over the socks and then your feet will stay toasty warm.
Then there will be no problem with Manipulating the fingers and hands to easily use a Zippo lighter or bic lighters or other fire starters.
Alternative method if hunting on Private Ground
Stay in your truck with the heater on and you won't get cold ! If or when you see a deer then ease out of your truck and go to stalking to get close enough for a good shot.
Or if hunting the edge of a bean field or ricefield (deer really like to bed down in rice fields)they will stand up every now and then and then lay back down.
I have taken deer this way,twice when hunting with a Ruger 4-5/8 stainless 44 magnum blackhawk and twice with a 10 inch 44 magnum Contender.
Crawled through the ricefield close to a quarter mile (yeah I was soaked and had mud all over me )and eventually getting within 75 yards of all of them and killed them when they stood up out of their beds.
Taken probably 30 more this way when Hunting with a rifle as longer scoped bolt rifle shots available without having to do any crawling or worrying about gettin bit by Cottonmouths...