Yes and yes Kim! You can use any pattern you want, I was surprised at how many there are, in fact I have a book with 200 styles, unbelievable!! Yeah, just as long as they are 6" x 6" go crazy girl!! I think Chicknthief mentioned that it would be a good idea to put a tag on the squares, not sure yet how that will work because that will be one tag and I will have to sort them for 20 people so that could mean a bunch of tags. We might can figure a way to make a page of thumbnail photos of the squares with the makers name beside the thumbnail pic...just brainstorming, haven't got the identifying figured out yet, lol!! I can leve them in your envelopes until I get them all so at least they will start out being organized..it's at that point that I get lost, loL!! We'll figure it out I'm sure. so, again, short answer to your questions, yes, make any pattern you want, 6x6, any colors but all the same pattern. We'll worry about identifying them later, lol!
And chickenranchwife...welcome aboard, really happy to have you and you can feel free to pick whichever type granny square you want to make...all 6x6, all of the same pattern but colors are up to you.
This is getting very exciting!!!!!
If anyone knows of better instructional video sites, please post them, there are a couple crochet newbies that I am pleading with to join us and they need just alittle more instruction!! Thanks ya'll!!!!