typical version of lure, used at the coursing EM in france 2010

§ 2.6.4.: The lure must be made of a light hare skin about 40 cm long, or of a similar material. If the weather is rainy or humid, a plastic or cloth lure can be used.

source: FCI regulations for sighthound races and lure coursing

at nearly every coursing i visited during the last three years the lure was made of plastic stripes … nothing similar to hare skin. some clubs hide a piece of fur under the plastic stripes but in most cases the hounds hunt colourful plastic even at sunny weather.