I've added sample packs of colorFabb PLA/PHA to my shop at printedsolid.com. This material prints at similar temperatures and settings to PLA, but is slightly more flexible. Most importantly, it has a higher elongation to break, which means that it is less brittle. It is held to a tolerance of +/-0.05mm for consistency.
If you have a PLA only printer and want something that feels more like ABS, this is worth checking out.
Customers who have purchased prints from me in regular PLA and the colorFabb material have come back requesting their parts be made with the colorFabb material.

Here's the link: http://www.printedsolid.com/product-category/filament-sample-pack