"reaction centre I und II (plant/men)", wood, 173x360x216cm, Eisfabrik, Hannover, 1991
"Arca", oatseeds, steel plate, Recyclingholz, 88x175x350cm, St.Jacobi church, Göttingen, 1995
"Hegemonikon", oat, steel plate, Wennersdorf, 2003
"Tongue-Paraclete-Generator", oat seed, clay, humus, earthworm, wood, steel panel, 1995
"Dürer-Bosch-Leonardo", oat seed, VW beetle, Hamburg, 1994
"Buster Keaton", opened, 33 centner oat seed, Kunsthaus Hamburg, 1995 (Foto: C.Mewes)
"MoonSeedTechnique (the Old Vehicle)", Hamburg, 1995
"Seed Boats", chalk, oat, eggshell, steel; Bremen 1990
"Sophie and Novalis", being filled with oat seeds, Orangerie, Hannover, 1995
"Kornkäfer (SeedBeetle)", oat, polyester, Hamburg, 2006
"MoonSeedTechnique", Harburg, 1992
"Luftbote (Luftboot) - Airmessenger (AirBoat)", 1996
"Watcher", oatseeds, phone box; Göttingen, St.Jacobi Kirche, 1995
"Crossing-Car Corniche", oat seeds, beeswax, 5x6x12cm, Instellungsraum, Hamburg, 2003