You can make oils from animal fats you eat. All you need to do is drain the grease and oil in the fry pan into a clean tin can from what ever veggies you also ate.
If you had lamb for sunday dinner and there was about 6 people eatting, save the baking drippings from the oven, save the meat scrapes from the dishes, and add these to the tin can.
I pick lamb /sheep because it is already low in salts..
You can do this with steak...
When you decide you might have enough, to pan fry more, do it slow, to get all the grease and oils to flow from the meat.
Add ALL of that into a sauce pan of about 2 qts measure and add about 3/4er's qt of water and boil it say 10 minutes and stop.
Set the pan to cool in a cold as possible place and wait.
Once cooled you will find the oil on top of the grease. The oil will be clear liquid, so spoon it off into a small container you plan to keep the oil in.
With a pancake flipper remove the grease cake, and put that in a closed container, like the sandwich boxes that seal.
If you like you can reheat the grease again to get the water to evaporate, and just pour hot liquid grease into a metalic contain since it will be too hot for a plastic dish.
What is on the bottom of the boiling pan is junk. Just trash.
You now have made light oil in a high quality.
You have also made grease.
Bee's wax is going to get more expensive, as is honey, since honey bee's for the last several years are simple dissappearing. That fact is very bad for man kind. Don't believe me seach it.
Still now many sewwing shops carry small blocks of bee's wax. I consider this essential to living no matter what, so get some.
Plain hot water with a little elbow grease is all any BP gun really needs... So long as you can find water, there is no problem.
The residue from burnt BP is water soluable...
This won't make anyone happy, but if you feel the need to use ammonia, err well you pee it, each and everytime you take a whizz..
Eww Yucky.... right... Well if so you just might want to read ALL the lables on foos, cleaning products and leather articals for the word urea..
If yer Brook Brothers jacket stinks like pee in the rain , that is because urea was used in the tanning process. Same thing goes for that leather gun belt and the bowie sheath. Proabably yer boots and many other leather items you own now.
To make lube, you simply mix a bit of oil with some grease, and add wax. melt it, and see once cool is it is to hard, to wet, and add grease or wax untill it is the way you like it cold.
I like mine to not melt in sunshine, but get sticky held between my thumb and finger.
Since I use it patching, wads and other things I like to melt some and soak what ever items I want soaked and with tongs removed them from a tray to cool. Most of the time these are smaller items, so a Altoids tray works well.