This is a stand-to for an incoming competition, one of our most expensive yet.
Later this week we're going to be offering the opportunity to Win £270 Rab Neutrino Pro military down jacket
Visit the thread at that link above and Watch it to be notified as soon as the competition goes live
I suspect you want something durable, I would suggest a quick chat with some of his mates and his wife to get ideas, and if it is ay something to do with a sport or hobby bung in a commemorative photo for him to hang in the loo.
It should be something personal that they should remember.
I was presented with a painting of a landscape taken from the top of a hill overlooking where I live now where we used to run a fair bit training for the Grizzly and another nice touch which choked me slightly was a mate when he left gave every member of the mess a set of cuff links as it was the last time the D and Ds had a leaving dinner.