The game randomly picks tools you don't have in order to force you to solve the puzzle that tells you which tool will be selected before you are actually asked

The game randomly picks tools you don't have in order to force you to solve the puzzle that tells you which tool will be selected before you are actually asked for it. If I recall correctly, you can't even carry all 10 tools into the room where the random tool is needed (unless you figure out the aunt thing).