Wow, the R2D2 blanket is going to be a bit bigger than I thought. My calculations, based on 2 inch squares, had the blanket at approximately 3.5 feet wide by 5.3 feet tall - and that's before adding the border.
Well, my squares all must be a smidge bigger than 2 inches as the blanket is currently 6' 8" tall - zoinks! That'll bring it to over 7 feet by the time the border is added on. I guess there's no need for me to worry about him growing out of it :)
R2D2 update... 180 squares made, of which 160 have been assembled. 418 squares left to go.