In a mixing bowl, beat the cream cheese, butter, and vanilla extract with a hand or stand mixer until smooth and creamy.
2 bars (8 oz each) full-fat cream cheese, 4 tablespoons butter, 2 teaspoons vanilla extract
Gradually add the powdered sugar and funfetti cake mix, and mix until it's full incorporated.
1 cup powdered sugar, 1 cup funfetti cake mix
Stir in the white chocolate chips and funfetti sprinkles.
1/2 cup white chocolate chips, 1 tablespoon confetti sprinkles
Shape the mixture into a large ball, reserving some of the mixture for the "bunny feet". Flatten one side of the ball slightly to form the "bunny butt". Wrap the bunny butt tightly with plastic wrap.
Shape the reserved mixture into two "bunny feet" and wrap them tightly in plastic wrap. Place the cheeseballs in the fridge, for at least 1 hour, to chill and firm up.
Once chilled, arrange your "bunny butt" and the 'bunny feet" (as pictured) on a large plate or serving platter. Dust the bunny butt cheeseball with powdered sugar, using a pastry brush if needed, to evenly spread it out.
1/4 cup powdered sugar
Decorate the cheeseball by cutting a large marshmallow in half and pressing one half (sticky side down) onto the center of the flattened area of the bunny butt to create the "tail".
1 large marshmallow
Arrange the pink m&m's on the bunny's feet to create the bunny's toe pads.
8 pink m&m's
Serve chilled along with some dipping options such as graham crackers, cookies, Nilla wafers, shortbread cookies, pretzels, etc. You can also decorate around the cheeseball with edible easter grass and/or jelly beans for a festive touch.