Daedalus Corp. uses a web interface[1] to control some of their toaster bots. It looks like they removed the command 'Shutdown & Turn Off' from the control panel. Maybe the functionality is still there...

hint:Some symbols need to be URL Encoded[2] when included in GET[3] requests.

[1]http://web2014.picoctf.com/toaster-control-1040194/
[2]http://en.wikipedia.org/wiki/Percent-encoding
[3]http://www.w3schools.com/tags/ref_httpmethods.asp