For those customers going for the touchdown, I present a 5.25x7.25 inch dark green pocketfold invitation with a football and two helmets in the design.
The 4x5.25 inch response card is also set up to mimic a football field just for extra fun:
This pocketfold set comes with white response and outer envelopes. Like all the invitations, of course it could be modified with different wording, colors, envelopes, etc.
Check out more info here:
http://www.savethedateoriginals.com/details/invitations/INVPOCK5.php