For the very desperate:
I don't know if it will work, but it might be a solution to some of you guys' Morse-code hell.
Go to:
http://www.velleman.be/index2.htm
Then choose:
Kit#:K2659:Morse decoder with LCD display.
Maybe someone wants to try it? Just don't get caught using it during the exam.
After all, it is not THAT difficult to actually learn Morse code!