I find I spy bottles fascinating. They are easy and inexpensive to make. I think it would be fun to make jars with objects that represent favorite family stories or things about a specific ancestor. I can just imagine a group of cousins with identical I spy jars gathered around listening to stories about their family while they try to find the item. Another option is to create an I spy jar to help in telling just one story. The items in the jar could represent different parts of the story. It would be awesome to make a story book to go along with the jar. How about a series of I spy jars with companion books waiting on the shelf for the grand-kids to come by?
Rice is the most common filler but lots of other things work like beads, bird seed, wheat or a mixture of small items. I hope the images below will get your creative juices going.