Hi Jackone,
I've been glued to your forecasts since 2007 (less said about the weather hat year the better).
I know some folks here and over at efestivals forum have suggested buying you a ticket to show how much these forecasts mean to us all, but you've said it's not really your thing, so how about this for a suggestion;
Glastonbury is known for the huge amounts of money it raises for various good causes every year, so how about yo nominate a charity close to our heart and us grateful Glasto goers then have the option chip in small donations as a way of showing our appreciation for all the work you put into this forecasts.