Sabo is the nickname for the designer/illustrator Sang-Bong Lim, who runs a "multiculture" shop in the Hongik University area (fondly called 'Hongdae' by the locals).
I ran across his whimsical designs in a shop window in Gangnam ('South of the River' district). Apparently they will be available shortly for those too lazy to make the hike to his Hongdae domain.
Sabo's website :
http://www.sabolim.com/(Korean, English and German)