Quite simple and just a very good and obvious idea: A delicious quality version of "The Drawer Box" in a size so it fits exactly to a real wine bottle.
Pull out the drawer and show that the box to be completely empty (or maybe there is a card with some magic spells in it). Close the drawer again. Do your magic and when you pull it out again, you have produced a real wine bottle! The bottle can be immediately picked up and given away.
Perfect for the restaurant, for the reception, for the birthday, for the toastmaster - any occasion where it makes sense to magically produce a bottle of wine in a simple and stylish way.
If you use the box's full capacity, the box can hold up to 33 x 8.5 x 8.5 cm.
It can of course also be used to produce something else, e.g. a bouquet of roses?