Barstool just released some pretty good MAC shirts.

"Lights, Camera, MACtion" and a "MAC is WAR" shirt based off the old-school WWE design.

They've had some pretty good OU specific shirts in the past. I have a Homecoming shirt from a few years back. I loved their Bowl designs. Might need that crewneck.

https://store.barstoolsports.com/collections/pardon-my-take