Generally, this type of gift does not end up as personal property of a President but goes into the White House prop room for the flunkies to figure out how long is long enough to wait to dispose of. The general phrase used to justify accepting gifts is, "It would cause embarrassment to the giver to decline acceptance."'No title of nobility shall be granted by the United States: and no person holding any office of profit or trust under them, shall, without the consent of the Congress, accept of any present, emolument, office, or title, of any kind whatever, from any king, prince, or foreign state."
Did Donnie get consent of Congress for this?
Holy shite, the lulz