A young family friend wanted to make a short video to include an interview which used 'wireless' hand held microphones - "like the ones they use in the F1 Grand Prix TV reports" - was how he described what he was after...
Having drawn his attention to the fact that the type of professional radio mic used for that - together with its associated receiver and audio recorder - was likely to cost him several hundred pounds, I suggested he might like to use a Zoom audio recorder instead (his camera doesn't have a mic input anyway!).
No good apparently - doesn't 'look' right
So I suggested fitting a cheap small audio recorder into a 'fake' microphone tube ... That allows the microphone to 'look' more like the real thing, and also helps solve the problems of handling and wind noise you can encounter when using portable audio recorders on their own.
And by selecting one of the Sony ICDPX series of recorders, you can keep the cost down. (Those little recorders are much better than you might think ---- Sony advertise them as mono recorders - in fact they are capable of excellent quality stereo recording as well!)
I made some notes on the project -- see HERE