[fsck0ff]

Well I guess you could use something like that: http://notimpossiblelabs.com/eyewriter with some software modification (pure speculation as I haven't even checked the code) you could use eye movement and blinking to simulate mouse input and with on screen keyboard you should be able to write your password somewhat securely http://www.ted.com/talks/mick_ebeling_the_invention_that_unl...

also shouldn't be expensive to build... [edit] link to the github repo the software can be found here https://github.com/eyewriter/

[escapologybb]

I will definitely look into that, I remember seeing the TED talk when it first came out and thought it was cool; thanks for the links :-)