In a large pot, melt butter over medium heat. Add marshmallows and continue melting, stirring frequently.
Once marshmallows are melted, remove from heat and add rice krispie cereal. Mix well. Grease a 9x11 inch pan with cooking spray, and pour krispie mixture into pan.
Use a sheet of wax or parchment paper over the top to press the krispies into the pan.
Let rest for about an hour.
Next, melt the candy melts in the microwave on 20 second intervals, stirring well in between. Using an egg shaped cookie cutter, cut out egg shaped krispies and place onto a sheet of wax paper.
Dip each egg krispie into the candy melts, then sprinkle with Easter sprinkles. Once all eggs are dipped chill them in the refrigerator for another hour. Enjoy!