While the above product is an awesome addition to any therapy bag or play room, there are some easy at home items you can use to form letters, numbers, and shapes. Practice letter formation with more than pencil and paper, you can use:
Popsicle sticks and straws: You can form all kinds of shapes, letters, and numbers. The curves are difficult with popsicle sticks but you can use pipe cleaners or string to form those little and big curves.
Salt or sugar: On a cookie sheet or tray, pour enough sugar or salt to cover the bottom and have your children form the letters, numbers, or shapes.
Zip loc bag and pudding: Place some pudding about half way full in a zip loc bag. Seal the bag and lay flat on the table. Easily write letters, numbers, words, or shapes. You can place the bag on colored paper for a better contrast. You can also use paint, shaving cream, or shampoo in your zip loc bag.