Are beer gift sets only released by Trappist/-esque (or Belgian) breweries? I know of the following breweries that release gift sets: Corsendonk Chimay Duvel Karmeliet Kwak La Trappe Lindemans Omer Rochefort St. Bernardus St. Feuillien Val-Dieu Westy (once) Westmalle p.s. Edited to not just include Trappist.
Foiled by the ninja edit ... Anyway- I seem to remember Guinness doing something with glasses. Unfortunately it probably doesn't include the FES, but if it did I would be into it- I think their glasses are kind of neat.
Weihenstephaner puts one out too, though I've only seen it once. Bought one for a friend's birthday last year... and still kicking myself in the ass for not getting one for my own. Comes with a selection of 16.9oz bottles as well as one very nice weizen glass. Did buy a Sam Smith's gift box though. Super nice pint glass IMO.
It's usually a Christmas season thing for them to be available outside of the brewery. I got one from the brewery in late may.