For in-store pickup only, Toys "R" Us offers the Doc McStuffins Get Better Talking Mobile Cart
That's $10 under our October mention and the lowest price we could find by $21, outside of the mention below. It includes toy instruments and a motion-activated siren that lights up and plays the Doc Mobile song. Requires two AA batteries (not included).
Close prices: Walmart
has it for $31.35 with free Site-to-Store pickup; Amazon
charges the same for Prime members.