Whether you love it or are over it, you’ve almost definitely seen subway tile in a kitchen, as either a backsplash or a full wall covering. These glossy rectangular tiles are ... Caulkins’ suggestion?
In fact, for the ultimate DIY backsplash hack, you can try these peel-and-stick Talavera wall tiles ($28.99 on Amazon). It's low-commitment, and you can invest in real tiles later if you fall in love!