Walmart has Cars 2 Lightning McQueen Classic Muscle Child Halloween Costume for $3. Shipping is free to store [store locator]. 
Walmart also has Cars 2 Lightning McQueen Classic Muscle Toddler Halloween Costume for $3. Shipping is free to store.

Retail Price:	$ 8.00
Deal Price:	$ 3.00
Savings:	$ 5 (62.50% Discount)