I am always looking for fun and useful crafts for my children, especially my younger ones.
There are certaian things that they cannot do because they lack mastery hand eye coordination skills, things such as crocheting and soap carving.
Although they are young they still want to feel as though their crafts or hobbies are something that they can be proud of. Here is one that I worked on with them. My children are ages four and eight. It was fun and it reinforced fine motor skills and challenged their ability to follow directions. Take a look.