One of our favorite pieces at MoMA’s Century of the Child: Growing by Design, 1900–2000 exhibit was this small shopping cart chair. This child version is titled Short Rest Chair (1989) designed by Frank Schreiner for Stiletto Studio in Berlin. Apparently a few larger, uncoated metal versions exist as well, titled Consumer’s Rest.
Originally a metal locksmith in the German armed forces, Schreiner later became a video artist and eventually, in 1982, started designing furniture and founded Stiletto Studios. The inspiration for Consumer’s Rest Chair came from a comment from Schreiner’s mother about wire-mesh furniture reminding her of shopping carts.
Update: The bottom left cart chair is not by Stiletto Studio.