I've been exploring around the entire project site for Poppy and was truly inspired. I really wanted to build one, but unfortunately, as affordable as Poppy was, I simply did not have the budget. Despite this, I set about designing a 2.6-ft laser cut humanoid robot with high-torque metal gear RC servos and an Android phone for a face. The total cost was roughly 500-800 USD. My project, titled Halley: Ambassador Robot 001, was heavily inspired by the Poppy project, and has many similarities.
I thought the Poppy community might be interested (especially for the people who wish to build a Poppy but do not have the funds, just like me), so I've written a full Instructable documenting how to build my laser-cut robot: http://www.instructables.com/id/Halley-Ambassador-Robot-001/
I hope you like my work and any feedback is highly appreciated!