I used items from our button bag that have various shaped buttons and ribbons. I added a pom pom, a car, a penny, and some pirate gold and ended up with about 45 different objects to find. I wrote them all down first. If you were to place all the objects on a piece of white paper and then take a picture of them and then print it out, little kids could know what to find.
Then I filled a Gallon size Ziploc bag with rice: