A while back before I knew more about how to draw on Google Sketchup I investigated a vacant parcel nearby the City Park in Pueblo, Colorado, and so in looking back into it I also dug out one of the first things that I drew, a sphere with a vertical fissure that parted along simple, global lines. I called it "Zippered Egg". And while the library took Google Sketchu[p off most of the computers at the public library (the only access to the internet for me at this time) I am still interested in repurposing this marginal land for this purpose.
I also looked into different styles of presentations. The one above uses a masonite baclground.
This one is a wide line sketchy version.