Separate the frosting into two small bowls.
Add approx 7 drops of red food coloring (more if you want it brighter) to one bowl and yellow food coloring to the other bowl of frosting.
Stir well until combined.
Spread half the cooled cupcakes with yellow frosting and half with the red frosting.
Pour both sprinkles onto two small plates then press the top of the red frosted cupcakes into the red sprinkles until the top is fully covered.
Place on a plate and repeat with remaining red cupcakes.
For the yellow frosted cupcakes, press them into the Mickey Mouse sprinkles and coat the entire tops.
Now to add the ears! Break open the mini Oreos and insert both flat circles side by side into the top of each cupcake.
Serve and enjoy! Wrap up leftover and serve within 2 days.