Using a small star-shaped piping tip, pipe the red food coloring into small roses onto the round cookie to completely cover the surface. The goal is to create a flower wreath. Place in the freezer to harden.
Pipe a message onto the wafer cookies if desired, such as “RIP.” Set aside
Cut a rectangle out of the cake, slightly off center, that is about 4” long and 2” wide. Carefully remove the rectangle and set aside. Fill in any bald spots in the “grave” with crumbled cake.
Cut the reserved rectangle of cake into a coffin shape. Frost with chocolate frosting, smoothing out as best as you can. Using a fork, draw a squiggly “wood grain” pattern into the frosting. Place 2 gold jimmies onto the side of the coffin to look like the hinges.
Frost the entire cake with chocolate frosting.
Crumble the cake scraps and place the crumbs next to the grave to look like the dirt.
Set the coffin on top of the cake next to the grave.
Pierce through the tip of a piping bag with a toothpick in a few spots to create a grass effect. Load the piping bag with the green frosting and pipe small patches of grass over the surface of the cake.
Stick the tombstone into the cake above the grave.
Place the flower wreath next to the tombstone and enjoy!