I like the alternate tuning idea since it seems we are all (or primarily) guitar players. It allows for enough freedom because there are no given chord changes, but has enough commonality to tie everyone's songs together.
I do propose that we don't go any lower than D on the 6th string, however. I know I'd personally have a TON of intonation problems going to C unless I bought some heavier strings and setup the guitars. I wouldn't frown on tuning whatever tuning we decide to use down a whole step though if that's what you choose to do.
We should set up a poll in another thread with about six possibilities and have everyone vote. I propose something crazy like:
-DACEBE
-DADF#AD
-DADEAD
-DAEBF#A (Bacon Skin's, only a full step higher)
You guys throw out a few more for consideration...
I think we need to establish criteria right now within the songwriting/recording process that we can draw cards for. Everyone writes/mixes something based on the five or so cards?
I liked the starter card: Don't Use Normal Instruments. I think the alternate tuning would suffice there. We need to draw cards around something like lyric structure/ideas, overdubs, arrangement, mix, etc. Again, somebody throw some more ideas out there and I'll try and organize it a little bit. I already nominate Bacon Skin as keeper of the cards...