If I had the resources (time, money, geeky knowledge for this sort of stuff), I would certainly be making my own droids as well! But I have no time, money, nor the geeky knowledge, so I will content myself with this video of how Mike McMaster's Workshop recreated Wall-E from the hit CGI movie of the same name. Awesome work.
Description for this video:
"The beloved Wall-E robot was just computer generated graphics in the Pixar movie, but fans have spent years trying to bring him to life. We visit Mike McMaster's workshop to see his incredible life-size Wall-E, a remote controlled robot that lives among an R2-D2 droid and other pets on Mike's orange farm."