Kohls.com has college tees starting at a low, low $4! They're doing $0.99 per item shipping, too…and of course, 3.2% cashback when you forward your order confirmation email to QR support!
Search for your favorite team then sort by price low-to-high. LSU tees are $4. I would list the prices of other schools' tees, but then again, why would you wear another school's tee? 
While you're at Kohls, check out their other sales, including today's deal of the day, MLB Flip-Up Step Stools, originally $37, now $9.99! This is an online exclusive — not available in stores!
Lots of other great deals at Kohls…check 'em out!