one of our latest past times is making adventure books. they're easy to make and little a loves the treasure hunt...here are the basics...
1) staple or sew together a mini book with a few sheets of blank paper
2) on each page draw a familiar item in the home...these are the clues
3) at each clue stop, hide a puzzle piece...i usually draw a final clue or map and cut it up
4) when all the pieces are found, your little one has a mini puzzle to put together...this will lead to the final treasure...usually something yummy