Proficiency with Disguises allows you to purchase these highly specialised sets of equipment:
 
Actor’s Glue (5sp): A tiny jar of glue used to stick hair and gels to the face but able to be torn off with enough force.
 
False Face Kit (5gp): A single slip containing an entirely pre-made face for you to put on your face, and a vial of glue to fix it to your skin.
 
Adjustable Lifts (15gp): A set of platforms and adjustable steel leg braces that can help you appear thicker, taller, or disfigured.
 
Disguise kit (25gp): A pouch of cosmetics, hair dye, and small props lets you create disguises that change your physical appearance. Proficiency with this kit lets you add your proficiency bonus to any ability checks you make to create a visual disguise.
 
Runic Tattoo Kit (50gp): Containing a backpack, tattoo needles, ink, a stone grinder, various alchemical compounds, and topical medicinal creams. Proficiency allows you to craft tattoos and other forms of body modification, like scalews, birthmarks or scars/brands, and remove them entirely from creatures who are willing.
 

Magic Tattoos

Blending magic and artistry with ink and needles, magic tattoos imbue their bearers with wondrous effects and abilities. Magic tattoos are complex magical enchantments placed in specific gem-infused ink which transfers the magic to a creature they are within. The designs of the tattoos vary greatly in appearance and artistry but share some general characteristics. One infused into a creature, damage or injury does not impair the function, with the ink seeking to reenter the body. If you have multiple magic tattoos, they count as a single magic item with regard to the number of magic items you can attune to, but are still limited to the amount of skin available.