Each product is produced in an edition and sold exclusively through the 20ltd site at www.20ltd.com, which stocks just 20 different products at a time.
Industrial designers Barber Osgerby have created a chair in blue-lacquered aluminium called Shell (above and below).
Textile designers Timorous Beasties have produced Devil Damask - individually boxed sets of hand-printed wallpaper (top image and above).
Architect Zaha Hadid and Alessi have produced an edition of Hadid's Tea and Coffee Towers table service in Sterling silver.
Sign up for a daily roundup
of all our stories