They do. They're called burners, and you get them at Walmart

by Anonymous 4 years ago

yes especially good if very cheap I always misplace stupid thing then it goes dead. They need to come with a bell that will ring even if it is dead. Hey that is like a cat collar. people care nothing for cats throw them outside so they get run over, but then they say it had a collar, which means nothing if it wasn't picked up by someone who cares.

by Anonymous 4 years ago