Walmart offers the Nickelodeon Teenage Mutant Ninja Turtles Desk and Chair with Storage Bin
, model no. TC85723NT, for $39.98
for shipping. (Orders of $50 or more bag free shipping; in-store pickup may be available for select areas.) That's the lowest total price we could find by $5. It's recommended for a children up to 50 pounds and features a cup holder and storage bin under the seat.