I would say practice on a real person, makeup will react in a different way on other materials. Skin is the best thing to practice on. Products get absorbed into skin, they will just sit on plastic or whatever the manikin is made of. You want to know how the products are going to work on a real person, how they blend, how the different skin types and tones affect the look of the makeup. I am sure you have willing friends that will let you practice on them? suzanna
U need a prosaide practice head. U can get them from www.dauphines.com in bristol, I think treasure house in stockport may be able to get one for you???
Facepainters use them and you can also buy flat mats of the stuff as its about as realistic to skin as you can get. The flat mats are great for practicing face + bodyart!