Once created by a disfigured artificer who used them to hide their true appearance, these glasses create some kind of projection around the wearer that alters their appearance.

When put on, these glasses project an appearance on the wearer, having the same effects and limitations as the "Disguise Self" Spell.
When the glasses are taken off or otherwise removed from the wearer, the effect ends.
This Item does not have any charges and do not require actions or resources to activate. They activate on their own when put on and deactivate when taken of.
However, the appearance that they create is fixed. Changing the appearance requires Tinkers Tools (and a proficiency for them) and 1 hour of work (counts as light activity).

The tool-requirements for the attunement process and the apperance-changing process do not have to be met by the wearer. Someone with the required skills could adjust the glasses for somebody else

Notes: The glasses need to be tinkered with for 1 hour to adjust them to a new wearer (requires tinkers tools + proficiency, but not necessarily by the new wearer), Headwear, Eyewear, Artificer