Put bright green buttercream into a piping bag and cut the tip. Pipe a ring of buttercream around the edge of the cupcake.
Roll a ball of black fondant.
Then form the ball into a log that is long enough to wrap around the edge of the cupcake.
Wrap the log around the sides of the green buttercream ring.
Pipe small dollops of bright green buttercream on top of the cupcake with some going over the edge of the black fondant ring to create a bubbling effect.
Cut a small amount off the edge of the green glitter glaze bag and drizzle on top of the buttercream.
Add green pearl sprinkles on top to add texture.
Roll a small ball of black fondant.
Then form it into a skinny log and stick it into the top of the cupcake.