Fuseproject founder Behar posted an image of the German industrial designer's Tantalo table clock, which was launched in 1971 by Italian brand Artemide. Its dial is set into the top of a curved stand, available in a range of colours.
Weisshaar – co-founder of design duo Kram/Weisshaar – paid tribute with a photo of the small red trackpads on Sapper's ThinkPad computers for Lenovo. Located in the centre of the keyboards, these are officially called TrackPoints but are commonly referred to as "nipples".
Hong Kong-based curator Aric Chen also made reference to the nipple in the caption for his Instagram post, which shows an image of Sapper's iconic Tizio lamp. Produced by Artemide, the desk lamp was released in 1972 and features counterbalanced joints that transfer electricity without the need for cables.
A red hairdryer that Sapper created for Milan department store La Rinascente in 1959 was posted by Italian designer Morgante. "One of my early memories of handling a good designed object," he commented.
Critic and Dezeen columnist Alexandra Lange chose Sapper's 1971 kitchen timer for Terraillon as her favourite of his designs. The small yo-yo-shaped object is included in the permanent collection at New York's Museum of Modern Art (MoMA).
PepsiCo's chief design officer Mauro Porcini uploaded a series of Sapper designs as a tribute. These included the conical Todo cheese grater for Alessi, the Italian brand he created some of his most iconic products for.
Dezeen editor Anna Winston also featured an Alessi product. She chose Sapper's 9091 kettle released in 1982, which has two whistles tuned to different notes so a harmony is produced when the water boils. Watch Alberto Alessi explain the story behind the design in our movie »
Sign up for a daily roundup
of all our stories