can you grab any part of the exposed key with a vicegrip?
The other way is to superglue the head of the key back on but you need to be very careful doing this. Obviously its not good if you use too much and superglue leaks down the key into the ignition. literally just a TINY dab on the head of the key then try to join it against the broken end and hold until it solidifies, while making sure nothing squeezes out to drip into the ignition.
With both methods you can spray some WD-40 into the ignition to help ease out the key a little better so it doesn't break off again while pulling.
The other way is to superglue the head of the key back on but you need to be very careful doing this. Obviously its not good if you use too much and superglue leaks down the key into the ignition. literally just a TINY dab on the head of the key then try to join it against the broken end and hold until it solidifies, while making sure nothing squeezes out to drip into the ignition.
With both methods you can spray some WD-40 into the ignition to help ease out the key a little better so it doesn't break off again while pulling.