You can type on your keyboard all day, heck, even all year without realizing you were missing an essential element of fun all along: Geeky Keys. It turns out there’s this website, Geekkeys, that sells awesome aluminum or zinc replacement keys for your keyboard, which come in a number of cool designs. There’s Walter White, Darth Vader, and Captain America ‘Esc’ buttons. There’s also a Nintendo controller backspace, and a 3D Iron Man Mask ‘Esc’ key that allows the backlighting to shine through its eyes. Prices are a little steep, ranging between $25 and $45, but for that little customization flair your keyboard will have, it’s not all that much.