Here it is for those who want it, my DIY plasticine recipe.
What you will need:
-A big pot to mix it all in over heat since you need to liquify the wax and petroleum jelly.
-Gloves and safety equipment. It's your house and your skin.This stuff is hot and may splatter and is flamable so be weary.
-I also wear glasses, but safety glasses might help in case of hot oil/wax spashes.
-A kitchen scale to measure out the ingredients.
-A spoon to do the mixing, long handle one works best. It should be sturdy as the mixture becomes stiff and will bend even the metal ones.
-Containers to pour the finished product in to cool.
-Good ventilation or a dust mask since you probably don't want any of the greasy fumes and powdered dirt coating your lungs.
Now for the ingredients:
4 lbs. of wax (I used a blend of mycrocrystaline wax and sculpting wax)
10 lbs. of fine grain Ball clay
750 ml of mineral oil
2 lbs of petroleum jelly (approx. 3 containers full)
Here's the method, I like to have everything ready to go before I begin, like an good cook. I made two batches one after the other. The first batch was great. I cleaned out the container and made a second batch right afterward. *The second batch had more clay added to have a finer grain option.
If you have any other questions feel free to give me a shout and I'll help you out.
Ciao for now!