Sesame Street Elmo's Find & Learn Alphabet Blocks However, all blocks are interchangeable between characters. Elmo makes learning fun! Alphabet learning is communicated when children place one of seven letter blocks in Elmo&#8217;s lap. Elmo can identify the letter in his lap, sing the alphabet song, and even has a question mode. Other characters sold separately. However, all blocks are interchangeable between characters. Figure comes with 3 blocks.