Crash (i.e. cause the interpreter to stop working and force close) Python
Should have been a code-golfing contest ;) - I guess the creativity is the statement the code makes: "I just don't know what's happening here..."

Copy and paste the following character in IDLE running on Windows:




The crash has something to do with the character being encoded as UTF-16 by Windows and the unsuccessful conversion to a UTF-8 character by IDLE...

Edit: python bug #13153