These needle felting kits from Woolpets are a great way to learn the art of three-dimensional needle felting.
The sculpting of the fibers is done using a barbed felting needle.
Step-by-step pictorial instructions make it easy to create your own needle felted creations.
Woolpets "Easy" kits are really easy; their "Intermediate" kits have more steps involved and will take a more time to complete, but aren't much more difficult.
Since each kit includes two very sharp felting needles, I recommend them for ages 9 and up. Younger children have been very successful with needle felting, but adult supervision is recommended for children under the age of 13.