Is the candy liquid? Then there's no rule that pertains to it.
Are you traveling alone, or with someone who has traveled a bit more? I'm hoping you're with someone else, to help allay your worries a bit on the travel days.
FWIW it does state that:
http://www.americanairlines.com/i18n/travelInformation/baggage/restricted.jsp
"Electronic cigarettes are not allowed in checked baggage. You may travel with electronic cigarettes in your carry-on bags only."
Actually, it's interesting. They aren't allowed in checked bags in any airline I've checked. So in this case while TSA might not care, the airlines DO. Don't check it.
http://www.alaskaair.com/content/travel-info/baggage/baggage-carryon.aspx
It's in the table towards the bottom of the page.
https://www.united.com/web/en-US/content/travel/inflight/devices.aspx
"Electronic cigarettes and personal vaporizers will not be accepted in checked or gate-checked baggage. These items may be stowed in carry-on baggage or on your person during travel"
SW:
https://www.southwest.com/html/customer-service/baggage/special-luggage-pol.html
"
Because these articles are designed to operate by creating heat, they must be transported in one of the following ways:
- The battery can remain installed but must be placed in carryon baggage or carried on your person only. The item cannot be used onboard the aircraft.
- Spare batteries must be protected from short circuit and carried in carryon baggage or on your person only.