Niiiice. You running that off a car battery or something? I might put warning labels on mine, too - it's just a fan that sits under a beer kit lid but I've bought a pwm so might jazz it up soon by putting it in a food tub. I sometimes use a litre cafetiere and had a starter that a fly got in so I decided to sling it by throwing it in the garden. Then realised the stir bar was in it... Urghhhhh. I made temporary stir bar by encasing a nail in hot glue inside a straw and heat sealing it while china-post did its thing.