just put an almond on his desk, with a note:
"i thought you could use one of these"
"this nut's for you"
"for the man that has almost everything"
or perhaps an almond joy bar ("sometimes you feel like a nut, sometimes you ...")
or maybe use a whole bag of steel nuts (as in nuts and bolts)
joke:
what do you have in common with an insane asylum which is short on patients? they don't have enough nuts, either.