"Portrait" SpermAssen
"Various Pieces" Mr. Sperme - Writers UnknownCartagena
"Characters" Mr. Sperme, Ox Alien, ToxicomanoCartagena
"Sperm" SpermDen Bosch
"Various Pieces" Various Writers; See TagsAmsterdam
"Erase - Character" Erase - SpermDen Bosch
"Sperm" SpermAmsterdam
"Character" Writer UnknownAmsterdam
"Various Piecenames" Various Writers; See tagsAmsterdam
"Swok - Caer" Various Writers; See TagsAmsterdam
"Sperm" SpermDrachten
"Sperm" SpermLeeuwarden
"Stop Aids" Mr. SpermeBangkok
"Kosmopolite Art Tour 2008" Various Writers: See TagsAmsterdam