Yes, you can do it at home if you have a sand blaster and air brush. Thermal and dry film coatings don't create enough stink to render an oven useless, but do create enough stink to know it isn't food sitting in there.

Techline Coatings sells films for home application. I've used their stuff ina couple of my rebuilds now. I'm sure there are others out there as well if you do a web search.