I gave my last two Christmas table toppers to two grandchildren who are spending their first Christmas in their own houses. I knew I had a box of 2" squares cut from all of my Christmas fabrics about 20 years ago. In fact one of the table toppers was made of them.
I'm just doing a random layout of them, no special order. I don't have as many lights so I couldn't do a red, green, light alternating pattern.
I'm building two halves of the table runner with an almost identical layout. I have to have an even number of rows in each half to have my seams going in opposite directions when I join them.
I have laid out two more sets of 4 rows to add on today. I think that will give me a runner 36" long and about 14" wide.