There used to be a yellow one (which IIRC was painted in the colours of a butter-spread) at Wellesbourne but that seems to have disappeared.
A poster on here who I have not seen around for a little while (ISTR) he was called Sunny Side up or something of that ilk.
May be someone on here knows what happened to that one. I do know that some Prooners either have flown in it or were going to do so when we had a bash at Sywell in October 02.
FD