What calibration objects do you print?

[Jimustanguitar]

I saw this earlier and thought it was great. Has anyone tried to print this object? http://www.makerbot.com/blog/2013/03/25 ... makerware/
Direct Thingiverse link: http://www.thingiverse.com/thing:64549

There's also this one http://www.thingiverse.com/thing:33902 and this useful set of patterns http://www.thingiverse.com/thing:5573

The advanced guys seem to like these
http://www.thingiverse.com/thing:8757
http://www.thingiverse.com/thing:9804
http://www.thingiverse.com/thing:58218



What are your "go to" objects for calibrating and testing your machine? The ones with related articles and guides are the best, in my (beginner) opinion.

[Jimustanguitar]

The torture test objects are a little out of the scope of my original calibration objects topic, but they sure are interesting. http://www.thingiverse.com/thing:48674