You can likely furnish a room for holiday company using what you already have around the house. For example, if you think a guest would like a private place to sit and apply her face (while freeing up the bathroom for everyone else), make one for her. Try improvising with a table surface, mirror, and a seat of some sort.
Each of these examples uses an ordinary table or desk as the horizontal, and cutely-mismatched mirrors, chairs, and tchotchkes are added to complete the functional vignettes.
(Images: 1. Jean Randazzo via love her style; 2. Miranda Jones via Sunset.com; 3. Home & Gardens via love her style; 4. Country Home via love her style; 5. LivingEtc via love her style; 6. LivingEtc; 7. Kate Hume via love her style; 8. Zownir Locations via love her style)