I also made a real looking egg with yolk using the same technique.
Step 1: What You Will Need:
- Small water balloons (I was lucky to find balloons that were roughly the same size and shape as real eggs)
- Crochet thread/ embroidery thread/ yarn/string etc.
- Chocolate, small toys or trinkets to place inside eggs
- Equal parts granulated sugar and water
- Pin, fine scissors and tweezers
- Measuring cup, cooking pot, and spoon for stirring
- Optional: pump for blowing up balloons