Here are a few ideas I found for you
1 -
https://www.pinterest.com/pin/500955158521783105/
2 -
http://www.etsy.com/listing/16431889...w_type=gallery
3 -
http://happyquiltingmelissa.blogspot...1_archive.html
4 -
http://straystitches1.blogspot.com/2...1_archive.html - scroll way down to Thursday, March 24, 2011. I like this one because it gives an impression of the yard lines on a football field
5 -
http://yardsandyards.blogspot.com/20...ectangles.html - this one could be made to look like a football field – green background, white lines, and use your Texas fabric for the rectangles
6 -
http://withakquilting.blogspot.com/
Scroll down to Tuesday, May 21, 2013, Steelers Football Quilt. You can easily change this to your school colors