Once cake is cool, break into pieces. Mix in your frosting.
Keep mixing.
Roll into cake balls (squishing flat before rolling helps keep shape). Make balls about the size of 1-2 bites (smaller is better).
Melt melting chocolate (do not use chocolate chips or bars) in microwave on medium power for 2 mins, covered, stirring, and checking often. Add more time if needed to completely mix.
Once completely melted, add 1-2tbsp of vegetable oil to chocolate and stir.
Take parchment paper (do not use tin foil or plastic wrap) and lay flat on counter.
Take rolled balls, place in melted chocolate, take 2 forks to pick up balls, let excess chocolate drip off, and place on parchment paper.
After making 4-5 balls, sprinkle decorations on top – sprinkles, other melted chocolate, or other toppings of your choosing
Let cool & enjoy! (Can be frozen to enjoy for several months.)