Well with MY PERVERTED MIND i can tell you helloween is my fabvorite holiday, not because i hold to the wiccan beliefs but because i can get a costume or 2 for me and the mrs rather cheap.
here is a scenario as a cop.
you: hey you come here.
him: Is there a problem officer?
you: there have been a rash of burgleries in the area and you fit the bill. Do you have any id on you?

him: no

you: ok up gainst the wall i have to search you for any weapons for my protection as well as yours.
searching him you feel a bulge

you: whats this?

him: what do you think it is?

You: it feels like a 9MM pistol.

him: no officer I am a music student and thats my "Instrument" in my pocket Would you like to try to play it ?

YOU: what is it?

him: Its called a Skin flute.
you: how is it played?

him: well much like a sex a bone. You put it in your mouth as far as you can.

You: Pull it out slowly as it may be "cocked" and could possibly be a weapon of ass distruction.

him: will i be going to jail?

YOU: no i want you to play me a few notes on my "baby grande" and make me a symphony i can sing to.. and if your good enough i will only write you a ticket.
imagination tied with some clever dirty talk is rather arrousing.