A quick answer that comes to mind is "White Elephant".
See Wikipedia White Elephant
A white elephant is a possession which its owner cannot dispose of and whose cost, particularly that of maintenance, is out of proportion to its usefulness. In modern usage, it is an object, building project, scheme, business venture, facility, etc., considered expensive but without use or value.1
There is also a party game in which people set out to intentionally give each other white elephant gifts.
One might also consider
Poisoned Chalice
as suggested here, or from that same page:
A curse in disguise
It's not standard or a set phrase, but it should be easily understood.