Give the Exterminator Hazard Pay

You find a box in the attic.

This box contains several hundred cocoons, each the size of a man’s thumb.  In a few weeks, they will hatch, releasing large, beautiful, man-eating butterflies.

Tada!

You find a box in the attic.

In this box lies a wand of the sort used as a prop by stage magicians.  Tapping something with the wand while saying “Presto!” will cause a bouquet of flowers to spring up from the spot which has been tapped.  The flowers will be attached to that spot as though they had grown there naturally.  This can be disconcerting to anyone who has been so tapped with the wand.

The Jewel-Encrusted Egg is Somewhere Around Here

You find a box in the attic.

In this box is a cage.  In this cage is a songbird.  The songbird sings arias from Italian operas.  It does not sing very well.

Mail It Back Home

You find a box in the attic.

A sheet of paper lies at the bottom of this box.  It states that this will be the box into which you will be sent when the Men in Black come to “collect” you.

Hide It!

You find a box in the attic.

This is a small box.  Within it lies a bullet.  It has your name on it.

Hiding in Retrospective Plain Sight

You find a box in the attic.

This box contains blueprints for the house in which you grew up.  The only thing out of the ordinary is that these plans show a trap door in your old bedroom giving access to “The Færie Realm”.

Come to think of it, you remember that that trap door was there, but…  Wait a minute…  How did they do that!?

Insta-Jig

You find a box in the attic.

This box contains a violin in good condition, though clearly used.  Playing any Irish drinking song on this violin will cause everyone in the vicinity to start drinking (beer will materialize as necessary — Guinness, of course) and sing along.

Nota Bene:  Singing and drinking of alcoholic beverages are frowned upon in some cultures.  Also note that everyone will know that the violin and the person playing it are the cause of the activity.