Take a cupcake and lightly frost the top. This will help the fondant stick the cupcake.
Dust down some powdered sugar or corn starch so your fondant won't stick to your counter top.
Dip a toothpick into the black food coloring and dip it into the fondant.
Moosh the fondant around until the color is full incorporated. If it isn't dark enough, add a few more drops. You don't want to overboard with the black food coloring - it has a flavor and if you add a lot of coloring, people will be able to taste it.
Roll out the fondant until it's about 1/4? thick. Taking a cookie cutter that's slightly larger than your cupcake top, cut out a circle of fondant.
Place the fondant on top of the frosted cupcake. Lightly press the fondant down around the edges of the cupcake.
To create the Horde logo, I found it was easiest to create the hairpin shape – straight line, oval, and then another straight line – first and then add the pointy notches of the logo. A toothpick will help with the details.
You'll have to be pretty quick about in this step, the royal icing hardens fast!
Quickly sprinkle red sprinkles on top of the logo.
Allow the royal icing to set. After a few minutes, your cupcakes will be done!