Walmart offers Super Mario Bros. Amiibo Peach Figure (pictured) for $9.96. (Best Buy charges pennies more.) Choose Site-to-Store pickup to avoid the $4.97 shipping fee. That's $3 under last month's preorder mention and the lowest price we've seen. (It's a current price low by $3.)
Of note, Best Buy has it in Yoshi or Donkey Kong for $9.99. Choose in-store pickup to avoid the $2.99 shipping fee. They're also at all-time price lows.