Air-Dry Clay in White (for reference, I used Sculpey Air-Dry Porcelain, also known as Cold Porcelain)
Pointy tool to poke through clay
Smoothing tool or toothpick
Covered surface to work on 
Aluminum foil for structure 
Acrylic paints in black and orange
Small piece of wire

If you would like to make Cold Porcelain Clay, this is the "no glue" method:
Cold Porcelain Clay
* 1 cup of baking soda
* 1/2 cup of cornstarch
* 3/4 cup of water
* 1 non-stick pot or skillet

Steps
1. Mix all of the ingredients in the pot/skillet and place on stovetop over medium heat.
2. Keep stirring the mixture until the clay thickens so that the clay can be lifted out of the pot in one piece (this may take up to 10-15 minutes!)
3. Set the clay aside to cool. When cooled, if the clay is too sticky to knead, place it back on the stovetop to heat again. You'll want the clay to be soft enough to knead, but not too soft where it sticks to your hands like a paste.

Learners will not need to use any apps or websites beyond the standard Outschool tools.