Beer drinkers are known to be quite rabid in the love of their favorite brands. Because they so closely associate with the brands they drink, they love to receive anything with the brand on it — especially if it's fun and interesting. At certain times of the year, especially at the big beer consuming holidays, Miller Brewing Company likes to do special, fun giveaways as rewards to these faithful followers.
This screen saver, created for just such an occasion, starts with the user's desktop and rapidly starts filling up the screen with little green shamrocks, right over the top of anything the user has left open. As the screen fills up, large shamrock graphics, featuring Miller Lite and Miller Genuine Draft branding, pop up out of the clover at random locations on the screen. When the screen fills up fully, even larger brand logos fade in and after a few seconds fade out and are replaced by Miller's latest advertising slogan.
After a period of time the screen is cleared of shamrock and the whole thing starts again. With a little wiggle of the mouse, or a touch of a key, all the shamrocks instantly disappear and the user can get right back to work.