One year, DH hid my nephew's basket hanging from the drapery rod on the window side of the drapes. We had to divert our nephew's attention when we were driving up to the house after church... it took him forever to find it, even with "hot and cold".
We have also hid them in the couch cushions (we took the cushion out), fireplace, toilet tank (empty the water out first!), dishwasher, wine rack, so many places. Kind of miss coloring the eggs and hiding the baskets...