Well done and thanks for your efforts. What wallet is the QR code for? You say
"Reverse side of the banner shouldn't remain blank, thus a design is needed."
I suggest just have the banner be the same on both sides, you never know what angle the cameras will be looking from and this way no more design is needed.
Good luck
Exactly what I'm going to do, for I read the same advice on Reddit penned by you or some other.
I have a local printer printing the banner, so that's outta the way.
The only thing left to do is find a fellow Bitcoiner attending the Super Bowl. Anybody?
~TMI
BTCITW