For in-store pickup only, Walmart via Google Express offers the Google Home Mini in Chalk or Charcoal for $29. Plus, link your Walmart account to Google and you'll receive a $25 Walmart Credit for a future order via Google Express. Assuming you use the credit, that's tied with our mention from a week ago as the best deal we've seen. (It's a current low by $25.) The coupon will be automatically issued when your Walmart account is linked to your Google account. Limit two coupons per household. Coupon expires January 15, 2018.