An yone still gardening ???
While I cant claim hugelculture method exactly, no branch or twig is wasted.
A 75 foot pine came down in recent storm, and the endless branches just lay on ground cut away from trunk. Rather upsetting. That tree had special meaning here..... it took the lightening strikes, saving the house. Now it is upsetting to see it felled and limbed.....
Need to find a job for all that raw material.......
		
		
	 
It's always sad to lose a significant tree, at least in my book. All those years of growth...
So, although I am not strictly doing hugelculture, I'm utilizing some of the concepts. I had an area behind an older building that we were concerned had lead  in the soil within the usual three feet closest. I layered leaves and small brush over the past four years. Its built up maybe seven inches at the most, I was able to plant in it for the first time this year. Still lots of sticks, but things are breaking down ok. Unfortunately I do end up burning a lot of larger brush and branches since our space is small without enough space to really use much. But the charcoal has value to plants and burning does use up lots of material if it's too much for me to use. 
Just this week, I used some medium (like three to four inch diameter) logs stripped of little branches to edge that new garden area. It's free and I know it will break down eventually if I need a change unlike plastic or metal. 
I sure wish I had some large trunk pieces! I wish I had more room, but I like the idea of "natural" play objects for the kids to climb, balance walk, etc. I did use a few small cut trunk pieces from my FIL to edge a sand pit area, both vertically and horizontally plus a few good sized rocks. I like the way that looks, although they get the sand everywhere. I've seen it done with big trunk pieces at a farm that had a play sand area and it looked cool so did a version of it. I always ask my FIL for any good long straight branches for making teepees for the garden, staking plants like tomatoes or peas. And they last a few seasons... plus Free. I'd also like to build an arbor or something with the nice medium branches from our cedar because I know they will last longer. 
I change things all the time so I like the idea of using a material that I can makes something with, edge a garden, etc or if I get sick of it, just burn it and not waste a big investment of bought materials. I am cheap that way, and non-committal I suppose too. 
Sounds like you have the same type of philosophy about trees and organic material, there is so much to make with it. Oh, also, I even have shorter sticks stuck around my garden to discourage using it as a shortcut. Also, I used the young suckers from a maple stump and bent them them so that each end stuck the ground making a half loop as a short garden fence, keeps little feet out. That looked so neat, I wish I had more. The young bendy branches work great for that, almost like working with willow. 
Well, good luck! I could go on all day, I love this stuff! I cant say my garden and yard look amazing but it's a certain rustic style I dont mind at all. Just get yourself some good jute or something for lashing things together. Fun stuff.