It makes me giggle every time it hear it and I'm sure it will entertain anyone waiting to answer your door.
Has holes in the back so you can hang it up.
I absolutely loved this Beware sign which lights up in time to the music which you'll instantly recognise as Bach's Toccata and Fugue in D minor
"Diddle DEE, da da da daaaaaaa da. Diddle Dee, dum dum dum dum,".