I have a set of eight photos and those rotate and change every minute or so (dunno the exact time). Bit boring maybe but they show landscapes of Northern Germany/coastal area shot by some photographer. Um, here's one of them..
Odd thing.. after I downloaded the series 'it' automatically changed the little sounds my laptop makes. Sounds have a water theme now and there's a drip sound and a wave (of water hitting shore) for instance now.