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.