slimmy

Anyone know how to sort out a new key for LX300? I have one working (grey end) and one snapped. If I turn just the broken bit it will not start up as the black bit with the buttons on is now seperate. I can see blanks on eBAY but must be more complicated than just going to a keysmith... or could I put the working inside from the snapped key inside the new key? it still unlock the door etc. but the key part is not attached! help?!