Ice the cookies. We want the cookie half white and half green. Start with a white line down the middle of the cookie, then drag it along the outer edge of the cookie (giving you a closed half moon shape). Then fill in the outline with white frosting, using a toothpick to spread & fill it as necessary (we don’t want it too thick!). See the tips in the 'icing' section above for more details & Q/A if needed.
While the frosting is still wet, place the cookie into a bowl and pour sprinkles onto the wet icing so it sticks.
Complete the white on all of the cookies before moving to the green. Note: Keep your white frosting in a warm-ish place so it doesn’t harden - you’ll be using it again for the yard lines.
Once the white frosting is completely dry, move onto the turf. On the half opposite the ‘stands’ outline the same white half moon that you did with the white, starting with a white line down the center then looping around the outer edge of the cookie. Fill this in with green frosting and let harden.
Once the green is set, add the white yard lines. With your white piping bag, draw a horizontal line between the white and green halves of your cookie. This distinguishes the turf from the stands more prominently. Then, add a vertical line across the green frosting from the horizontal line you just drew to the outer edge of the cookie.
Then add field lines on either side of this, somewhat on an angel starting from the horizontal line out to the outer edge of the cookie (see photos). I fit two additional white lines on each side of the center.
Add a 5 and a 0 on either side of the center line to represent the 50 yard line, add hashes between each of the larger lines you drew and let set.
Arrange the decorated cookies on your serving plate and enjoy!