I decided in the long run to add the smaller blocks to the top of the quilt.
I added a 2" sashing because I didn't want the quilt to get TOO large. I measured each row, and for the most part each of them were close in size! I did end up having to add a little sashing to the top of some of the rows. Then I added a full row to the top & bottom of the little blocks.
I also added a slightly larger border to the bottom, I figured that if I felt it was too long after quilting I could trim it, same for the side borders.
When I quilted it I actually did it upside down, because the of the back. (there is a picture further down), but I had one small block left over and I used it in the back, I wanted to make sure the whole thing was on there. (If you don't know, when long arming you need to make sure your backing is a few inches larger in width & length to be able to attach it to the machine.)
Here is the finished quilted quilt!
And this is the back. I don't think I have a close up of the fabrics I used, the left & right pieces have donald duck on them. My FIL loves him. I had actually bought the fabric for the back a few years ago to make him a quilt. I think it works well for the back! You can see the one extra block on the bottom right. The bottom left is the label I used. I tried something new.
It's cricut infusible Ink. I usually have done corner labels and write them with a pen, but after a few washes, it ends up coming off :/ infusible ink will NOT do that! Next time I will use my heat press to do this, you can see where I kind of moved the transfer sheet with the iron.
I should have made it a small block on the backside, but I folded over the edges and stitched it right on top. But like I said it's my first time, gotta start somewhere!
If you are interested in a tee shirt quilt I have more information
here