My youngest brother, a drama major, showed me this one:

Take a piece of yellow legal pad paper (14" long, for those who don't know) and tear a strip about 1/8" wide off of the long side. Accordion pleat it and put it up your nose. At some appropriate moment (e.g., sitting under the pulpit during the sermon, ordering in a fancy restaurant, saying goodnight after a hot date) grab the end of the paper rip the whole 14" out in one quick pull and throw it behind you. Make some appropriate comment if you wish.