Series of porcelain objects (produced in series in factories), which every of is a half of the proper form.
'Intermediates' ('semi-products') are products obtained in some stage of the production intended to further conversion and treatment.
According to this definition giving a function to items becomes a role of the customer. After a small lifting the possibilities are unlimited: semi-jar as lamp scone or flowerpot; semi-ears as a candlestick, a plinth for a hot pot etc.