I'm not sure if this would work for Gessies,but I thought it was interesting.Scroll down.
http://www.houzz.com/ideabooks/9593816/list?utm_source=Houzz&utm_campaign=u260&utm_medium=email&utm_content=gallery7m
Lynn
Vertical Gardening Indoors
Nice for succlents for sure!
The people on Gphiles have sent pictures of live Gessie walls into the forum.They are pretty cool.