Terrie, I can't commit to this right now but just thought I would suggest that anybody who does want to do it should specify how many blocks they are prepared to make.
Also, 6" blocks are very small and it would take 30 blocks to make a 30"x30" quilt. That means having to exchange with 30 individuals unless you want to exchange more than one block with each member. Some of us are not so happy doing tiny blocks (ahem
) so maybe if you had either a 6" or a 12" block (6 1/2" or 12 1/2" unfinished block) then those who are diminutively challenged could do the bigger one.
I also think that you will have to keep reminding people to PRE-WASH their fabrics and that it is a RED and WHITE exchange only. As for what constitutes a red fabric, I did my red and white BOM last year and I had a wide variety of fabrics in that including red with white dots, red with white flowers etc and they all look great together. But I think you need to decide on the white - if it's white on white, cream on white etc., that would be fine but if somebody decided to do an off-white or cream background with a white dot for example, while that's lovely in itself it will stick out like a sore thumb if it is the only one in the collection. The white fabric will be the background and those backgrounds need to bind the different reds together so in a way it is more important than the reds.
That's just my tuppence worth.