ANSWER: The interior reaches boiling temperature and if disturbed or bitten into, it can explode, showering you with melted sugar. Many children have been burned badly by trying this. My advice is don't. Mythbusters did a show on this. See the related link for more info.
I think you can buy one at Dylan's Candy Bar but I'm not sure. i saw it on a show. I'm pretty sure they have everything, even a giant jawbreaker but you have to check!
jawbreaker by the dead weather
Jawbreaker was released on 02/19/1999.
The Production Budget for Jawbreaker was $3,000,000.
1 Jawbreaker has 500 calories on average.
Jawbreaker - video game - was created in 1981.
Jawbreaker - video game - happened in 1981.
Jawbreaker grossed $3,076,820 worldwide.
As they're made including a lot sugar, yes it has calories.
jawbreaker
Jawbreaker grossed $3,076,820 in the domestic market.
It crackles and pops. You would probably have to get a new microwave if you attempted this at home.