My sister teaches kindergarten, and every year she buys eggs and rents an incubator from the 4-H office. She's never candled the eggs and luckily, none have exploded on her. Once the chicks are a couple weeks old, they go to a friend's ranch. Anyways, I noticed a cool candler that surrounds the egg in a black casing, and it can be fitted with a web cam so that the class can see it. When I told her about the candler she was excited, but it is $59.95 plus shipping. Are there any other methods that would allow her to handle the egg, and the class to view the egg? I'm thinking something that could be hooked up to a tv, computer, or projector if possible since it is for class full of littles. Thank you!