Primarily just to have something physical to use for reference.

Artists Manikin Blockhead Jointed Mannequin Drawing Figures,Small Figure Model for Sketching, Painting, Drawing, Artist Male+Female Set - Gray Colored Version

I've been meaning to get this to use my custom paint for my gunpla.

3M Half Facepiece Reusable Respirator 6200, Gases, Vapors, Dust, Paint, Cleaning, Grinding, Sawing, Sanding, Welding, Adjustable Headstraps, Bayonet Connection, Medium - 