Seriously, nice job on those paper models Col.Hornet especially the top one; thought they were plastic models when I first saw the photos, the cockpits on both of them look perfect. (Pardon late mention of this net was wonky yesterday).
My big one at the moment (probably more 'obsession' than hobby) is the World of Darkness RPGs. Supernatural characters (Vampires, Warewolves, Magicians etc) and a dark gothic-y modern setting with lots of dark conspiracy and politics (it's a series designed for adults not kids; lives up to the name a lot). I'm one of our common game runners and I've been working with a friend on a AU New Orleans canon (Wikipedia and google maps are lifesavers) to set our games in and setting up an online space for organising it all. We don't get to play a great deal, but I quite enjoy the world-making so I just carry on with that. I also just love the mechanics of the game; complex rules but they flow so well you don't think about it. Been on-and-off about trying to modify the base WoD system (and stripping out the supernatural stuff) to make an FS universe RPG.
Alongside am a long-dormant Warhammer/Games Workshop fan trying to get back into it (waiting till I have income before I start collecting proper). Haven't bought many models in a long time; to be honest I enjoy reading/discussing the canon way more than I do playing it (it's been around for a while and the universe is massive; I heard they won an award of some kind for it's depth). Am debating having a shot at writing some stories set in the universe and seeing if I can submit them to Black Library (the GW book people) but I seem to hit writer's block way too easily. Favourite side? I'll just say "The Greater Good" and leave it at that

.
Last big one I guess is philosophy (maybe bit weird sounding, but there ya go). I did an MA that touched on it and left me wanting to look into it a lot more so I try to read up on theorists and theories when I get the chance (found a good lecture set in iTunes U that helped; from The University of New Orleans ironically

). Am quite interested in how technology and socio-politics interplay and how technology can shape and benefit people. One of the big things that first hooked me to Blue Planet was how the UEF use supercomputer projections to guide policies; is a concept I would love to see tried in real life
(“Political campaigning? Multi-party politics? Inefficient and outdated!” 
). Have an own IP I've been brainstorming that's inspired by my politics/philosophy interests (really do want to make it one day). That was another big BP hook in fact; the UEF is in a lot of ways similar to my IPs main protagonists (there are some big differences too, but I'm still worried if I do it now everyone would think I've ripped off BP

).