Does such a thing exist? If not has anybody had sucess adapting any lapel mic?

It's really simple to do on an MKE2 thats designed for wiring but I don't have 1 of those.

So can anybody recomend me a decent but cheap lav (<£100) thats not wireless.

you just want a lav? the cpc stuff is normally quite good to experiment on/use for the price!