Find yourself some pine pitch, the best is the hard stuff that looks like dried glue already. You are actually just adding stuff to make it less brittle and stronger.
You can use the goopy stuff, but you will have to cook off the volatiles, with the hard pitch the volatiles are already gone.
Use a tin can or something disposable and melt the pitch then add some finely ground charcoal some dried rabbit or deer pellets and some wax or fat of some sort. All stuff that you could likely find out in the wilderness, can skip the wax/fat if you have to.
Adjust amounts based on consistency, you want it somewhere between melted chocolate and taffy. When you have it mixed to where you want it, take a stick and swirl some of the pitch on it and dip it in water too cool the outer portion, use your fingers to mold it a little like you want it to be shaped, then add more layers of pitch until you have what my picture shows. Let it cool and test it by poking fingernail into it, it should just barely dent it. If too soft just melt it down and add more pellets, charcoal and wax. My first round was too soft, after several hours it started to lose it's shape so melted again and added stuff, now it's perfect.
Have to play with ratio, but mine by volume was about 4 parts hard pitch, 2 parts pellets (I used dried cow pie, but you can use any herbivore crap as long as it's dry!), 2 parts charcoal and 1 part wax.
There are a lot of great videos on YouTube of guys making it.
