Walmart offers the Letter Train & Piano Activity Table, model no. 801, for $18.76. Opt for in-store pickup to avoid the $4.97 shipping charge. That's $3 under our mention from three days ago and the lowest price we've seen. (It's the best deal currently by $14.) Features include an alphabet table, five-note piano keyboard, and a train with whistle, gearshift, spinner, sliding bee, and flapping butterfly. It requires three AA batteries (included).