If you have an older device that won't soon have Android Lollipop or may never have Android Lollipop then you may want to check out the Lollipop Launhcer. Everyone knows that the real launcher in official Lollipop is the Google Now Launcher, but you wont actually get the Material design theming and animations unless you are actually running Lollipop on your device.
Lollipop launcher replaces your homescreen and gives you many customization options. You get full Google Now integration including OK Google, Icon themes support, customized app drawer, infinite scroll, scrollable dock, gestures, and improved performance. This is a free install. Head to the Play Store link below for the download.
via Play Store