My dad used to use vaseline. When the tick came off, we used to put it into an ashtray with 91% rubbing alcohol and roast it.
Well, we did, until the dog discovered it loved the taste of freshly removed ticks...same dog that chewed up a flashlight battery while it was teething.
Like our crazy Siamese that ate all the rubber doorstops tips off in a fair sized house.
And ate the mouthpieces on our scuba regulators, which we found out about almost too late when going diving. Crazy cat loved to chew rubber.