The tricky bit is catching the cat.
I've found that after spotting a suitable cat, the best method is to hide around a corner, clutching a nice heavy shovel whilst making a noise like a piece of poached chicken.
I agree though, that a cat will be too large for a lapel mic. A rat would be a better bet and fewer people complain when they go missing. They're particularly good for discrete use when undertaking 'street' recordings in the more insalubrious parts of town. For more decorative applications, hamsters or gerbils are good and usually are readily and cheaply available from pet shops.
For formal use at weddings, a small chinchilla would be acceptable in most social gatherings (for longer shotgun mics try a mink or, if on a tight budget, a ferret* (for stereo use a side degu may be added to form an MS pair)). If the chinchilla is felt to be too ostentatious, a long haired guinea pig is a polite substitute** however, avoid anything too flashy in colour; this seasons 'in' colours are sombre browns or greys and the past summers multicoloured/patchy whites and sand colours are a definite social faux pas. A dyed rat is a poor substitute and should be avoided for anything but comedy/novelty use such as fancy dress parties or clown suits.
(*both of which are available in 'natural winter white' for white tie events.)
(** though it goes without saying that they are completely inappropriate for morning funerals, where nothing but a trimmed, dark grey mourning mouse is acceptable, placed at nine degrees off the vertical on the left lapel and attached by a plain silver pin.)
Topic: Making a dead cat windscreen (Read 7282 times)