Quoted from pinteresting:
I think that the plan is, for this to really work out for everyone, that we will try to agree on hardware elements, targets, ramps, etc. in the game design and allow everyone to "theme" their own. I have a theme that I would like to do but I'm sure EVERYONE has a specific theme they'd like in the end.
I don't want to rain on your enthusiasm, I love it, but I just want to caution you as someone who's been involved in making a pin that it's not really that simple, and you're not really grasping the extent of the work involved in such a plan. It's a huge undertaking, and all the parts really do depend on each other.
My two cents, and again just offering in spirit of wanting you to succeed because it would be great to see it happen, is that you'll be much better off doing the hard work of all agreeing to a theme and vision together, and working towards it, than trying to make an every game that can be everything to each person.
That can be tough. I have a game vision I've been tinkering with for a while, and as much as doing it myself is probably too much work, trying to get a bunch of people I don't even know to rally around making the game I personally want isn't really realistic either.
But if you or your team can come up with something you can all coalesce around you're going to have a much easier time, and by easier I mean still a ton of work!
Edit: Also, jealous of your shop access, sounds awesome!