This is a neat little sample platform that demonstrates print quality under different layer thickness settings. It is a printable remix of this excellent thing by CreativeTools: http://www.thingiverse.com/thing:69351 and uses this super cute tree frog by MorenaP: http://www.thingiverse.com/thing:18479
I printed it on the Makerbot Replicator 2. Hope you find it useful!

I printed the platform using a Replicator 2 at 0.1mm with PLA in red and switched the filament to white when it started printing the text. The frogs are glued on the little pedestals.