Walmart offers the Petmate Combo Feeder and Waterer with Stainless Steel Bowl in Blue for $6.04. Opt for in-store pickup to dodge the $5.99 shipping fee. (Amazon charges the same with orders of $25 or more.) That's tied with our mention from two weeks ago and the lowest price we could find now by $6. It's dishwasher-safe, comes apart for cleaning, and takes standard 2-liter bottles.