Welcome to the swap, JckieP! And grandma23 we would love to have you join.
I did not specify that the fabric had to be pre-washed. Some are cutting from their scraps and may or may not have washed their fabrics first. So, either way is fine.
When I make I Spy quilts I always put in holiday fabric, but not just Christmas. I have Easter, St. Pats Day, 4th of July, Halloween, Christmas and some birthday cakes if I can find them. For this swap I would say a holiday fabric was ok as long as it was specific objects a child can identify. Please limit them to one per bag, just to keep everyone happy.
The squares are starting to roll in, and we are still gaining new swappers. This is going to be a great swap!