This isn’t my problem, but I thought we could have fun with it.
I have a friend who’s bought an electric guitar for a birthday present. How does she wrap it and then hide it until the appropriate day? I’ve already given her the Hitchhiker’s answer. Let’s do this Discworld style.
Chalk a ‘1’ on it and store it in a magic travelling shop?
You can’t kill me because I’ve got magic aarrghh!
Store it in your local branch of L-Space?
Put a blade on it and pretend it’s a scythe
And make sure it has been checked by the watch.
“Experimental animals, under carefully controlled conditions, do what they damned well please”.
Harvard Law of Animal Behaviour.