You’ll need a chocolate/candy mold, a candle mold and wax of course. See Easter Aplique Project by Bob Sherman for full details.
Bob Sherman is also the author of Candle Making (A step by step guide from beginner to expert), which in my opinion is one of the best books on candle making out there. It’s very detailed, contains many projects and has easy to understand instructions.
You don’t necessarily have to make this an Easter candle because there are a variety of molds out there that would work for multiple occasions. However, it is Easter and the wax bunny will last longer than the chocolate one. I do wish you a Happy Easter and hope you’re enjoying some time with family and friends.