Idea: Create a children's coloring book from your photographs

Fototiller has a great tutorial on how to make coloring pages from your photos. Read the tutorial here ...

Once you have mastered the technique, put together a collection that you can make into a book to sell. Try using a theme like toys or children playing, or play equipment, or beach holidays.

Then use a service like CreateSpace.com or Lulu.com to make and sell your coloring book. And/or approach newsagencies or children's toy stores to stock the product.