So I made them myself. There are 10 containers for $9.95 at Lakeshore and then I had a coupon buy one get one half so I made the alphabet set for less than $30.
After I printed the letters off I used packing tape to stick them to the containers. Each container has house hold items in them along with a magnet letter.
We would watch the Leap Frog letter movie and pull out these containers and play a game. My son loved this.