Reddit mentions of Mehron Makeup Stipple Sponges (3-Pack)

Depends on what she already has, but if she doesn't have any of the following, she might like it.

• Skin Illustrator palettes
  
• Airbrush and compressor (I really like Iwata)
  
• Airbrush makeup (Dinair is pretty good for beauty, Skin Illustrator for FX)
  
• Atlas of Human Anatomy book
  
• Sponges. Wedges, red, stipple <-- even if she has these, she'll need more
  
  edit: You can probably find lower prices than from Amazon, and you can get aquarium filters to cut up for the stipple sponges.

This is the most popular. http://www.veramona.com/shop Though I'm 95% sure they're just overpriced stipple sponges that you can find at any theatre makeup shop. https://www.amazon.com/gp/aw/d/B008ND0E02/ref=mp_s_a_1_1_a_it?ie=UTF8&qid=1493026214&sr=8-1&keywords=stipple+sponge

I'm going to second the stipple sponge and cream makeup. That way is the easiest imo.

https://www.amazon.com/Mehron-Makeup-Stipple-Sponges-3-Pack/dp/B008ND0E02/ref=mp_s_a_1_3?keywords=stipple+sponge&qid=1566857025&s=gateway&sr=8-3

I have also done the mascara wand beard, I used the mascara with fibers and that seemed to do okay.

My favorite way but also the most time consuming and uncomfortable is the spirit gum and crepe wool. The key here is to cut the crepe wool really really fine. I usually outline where I want it with eyeliner and then fill in little by little.
Be careful if you have sensitive skin and use either an actual remover or baby oil when it comes time to take it off.

https://www.amazon.com/Mehron-Spirit-Liquid-Adhesive-Available/dp/B00V20KZQG/ref=mp_s_a_1_9?keywords=spirit+gum+adhesive&qid=1566857131&s=gateway&sprefix=Spirit+gu+&sr=8-9

https://www.amazon.com/Mehron-Makeup-Costume-12-inch-Medium/dp/B008YGF98U/ref=mp_s_a_1_3?keywords=crepe+wool&qid=1566857176&s=gateway&sr=8-3