No day without a line

Guy Rombouts & Monica Droste, Geen dag zonder lijn ('No day without a line'), 1989
Guy Rombouts, Leegte is vorm ('Emptiness is form'), 2007. 
The work consists of 26 colorful shopping bags, each containing a found object that represents a certain letter of the alphabet, beginning with ‘amfoor’ (amphora) and ending with ‘zeef’ (sieve).