You can find "tesla coils" listed as Master High Frequency on ebay. Used in the field of cosmetology and skin care. Make sure you buy a "working" unit. These units heat up and burn out when used for prolonged periods of more than 5 minutes. Dumb cosmetologists often over work these units and burn them out.
You will need to make your own metal pointed probe if you buy one of these with the glass skin care probes. But it is cheaper than paying $250 for a new one.
https://www.ebay.com/itm/Vintage-Mas...4AAOSwGJlZL6Bu