You might have already seen the blog about using bottle caps for teaching alphabets. As your toddler begins to pick the alphabets one by one, you would also want them to know the sequence. I made a simple board for this. Again using carton box.
I added the ice-cream cones to give her the sense of orientation
You will be surprised to see how eager they will be to bring out the alphabets they are familiar with onto the board
This could also be a good board game on a play-date for toddlers