I am currently working on making my very own Wheatley (from Portal 2), but in the meantime I'd like to show you guys a wonderful WALL-E (and HAL on his shoulder!) I came across at the OC Mini Maker's Faire in Irvine, CA.
About this WALL-E (from what I was told at the Faire):
This is made by Mike McMaster (His Website) and a few others in his workshop in Northern California . The head is fully articulating (Via Radio Control) , as well as one of the arms!
Here's a fantastic video all about it was featured during YouTube's Geek Week: youtu.be/7oVSaUWeKt0
All credit goes to the makers/Disney/Pixar