You can find Furniture Factory and Tailor's workshop in your city's shop.
FURNITURE FACTORY

Requirements: available in the Shop from level 18.

Furniture Factory I
Collect 6 Smoothies (Convenience Store, Upgraded Convenience Store)
Collect 4 Packs of tissues (Family House, Hostel, Upgraded Hostel)
Collect 5 Ring cakes (Bakery, Upgraded Bakery)

Furniture Factory II
Collect 10 Drills (Cozy House)
Collect 5 Towels (Subway Station, Upgraded Subway Station)
Produce 4 lots of Windows (Construction Factory, Upgraded Construction Factory)

Furniture Factory III
Collect 4 Pencils (Stationery Shop, Upgraded Stationery Shop)
Collect 5 Planks (Cargo Port)
Collect 7 Tubes of glue (Shoe Shop, Upgraded Shoe Shop)


TAILOR’S WORKSHOP


Requirements: available in the Shop from level 19.

Tailor’s workshop I
Collect 5 Water bottles (Wok cafe, Upgraded Wok cafe)
Collect 12 Spring rolls (Bistro, Upgraded Bistro)
Collect 6 Umbrellas (Subway Station, Upgraded Subway Station)

Tailor’s workshop II
Collect 9 Stepladders (Convenience Store, Upgraded Convenience Store)
Collect 11 Green paints (Flower Kiosk, Upgraded Convenience Store)
Collect 8 Croissants (Bakery, Upgraded Bakery)

Tailor’s workshop III
Produce 3 lots of Linen (Textile Factory, Upgraded Textile Factory)
Collect 8 Peacock feathers (Stationery Shop, Upgraded Stationery Shop)
Collect 5 Satin flowers (Premium Cottage)

Tailor’s workshop IV
Collect 2 Leather sofas (Furniture Factory)
Collect 4 Sewing machines (Textile Factory/Upgraded Textile Factory – Denim)
Collect 3 Mannequins (ask friends)