I made this "Spinny Speller" after seeing it at the Let's Explore Shop! If you can't make your own I recommend buying one. It is a great tool for learning the connection between sounding out letters and forming words.
If you want to make your own...
5 1in wood cubes
1- 4 1/2in long, 1/4in thick wooden dowel
A drill with a 1/4in bit and a a 5/16th in bit.
Step 1. Drill holes all the way through three blocks, dead center, with the 5/16th bit.
Step 2. Drill holes 1/3rd of the way in two of the blocks using the 1/4 in bit.
Step 3. Slip the three blocks on(they should spin freely)
Step 4. Use the two other blocks to cap the ends. Squeeze a drop of glue on before you put them on.
Step 4. Apply stickers or use a marker or paint or ink stamps? the letters I used were, MCBH AEOU GTDP
If you don't make one, I recommend buying one! Also there are a lot of other great things at the Let's Explore Shop.