Target offers the LEGO Marvel Super Heroes Spider-Cycle Chase, model no. 76004, for $13.99. (Amazon has it for Prime members for the same price.) Opt for free in-store pickup to avoid the $5.43 shipping charge. That's $6 less than the lowest pickup price we could find. This 237-piece set comes with three minifigures: Spider-Man, Venom, and Nick Fury.
Update: It's currently out of stock for pickup at Target; however, Amazon still offers it for $13.99 with free shipping for Prime members.
Amazon offers its Prime members the Disney Infinity Sorcerer Apprentice Mickey for $9.99 with free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, it starts at $4.98.) That's the lowest total price we could find by $6.
Of note, you will need a Disney Infinity Starter Pack to use this figure.
NessKo Imports via Amazon offers Amazon Prime members the Webkinz Siamese Cat for $2.99 with free shipping. That's the lowest total price we could find by $14. This plush animal comes with a secret code permitting the adoption of a virtual version of the pet at the Webkinz interactive website.