Henry -
That is a real Christmas treasure. I hope you make something awesome out of them. Are there enough that you could center a project for all your family members around one block? That way everyone could have one of Grandma's blocks.
It's funny how everything comes back around, isn't it? Brown combos (with pink, turquoise, mint green, or light blue) have become very popular again.
Merry Christmas,
Darren