dude.... i wants that usb flash drive!!

one thing you could do is block out the case of the usb drive then take the cut faces tool and go crazy chopping it up and seeing what can be used for limbs

also you could take a usb flash drive and try transforming that as if you were transforming a toy (may sound crazy but i did it with an imaginary alarm clock while on the train and sure, things popped out where they wouldn't normally be able to fit but that's where the blocking out side of things makes it easier to see if its going to work)

say like the bottom of it where the handle thing is that the string/rope thingy ties into, from that to where the circle is you can split that into legs and above the circle you can split taht up into arms
or the other way around (although given the placement of the circular piece it's probably best to make the bottom part into arms and the top part as the legs)
want me to show you what i mean or do you get the idea?