Example Picture Clues

You can use pictures of:

Fridge → hide clue inside refrigerator
Flowers → hide clue by garden or plant
Bed → hide clue on bed or couch
Books → hide clue near bookshelf
Door → hide clue near entrance
Tree → hide clue outside in yard

Make the hunt your own, and use whatever area you have to make it work.

The final picture can be:

Treasure Chest or if burying the treasure, an identifiable feature with an "x" marks the spot for them to dig.