This is a bottle opener made from a genuine pink used spark plug.
I regularly buy used or old stock items to recycle and these were in a batch of used spark plugs I bought recently. 
I only have four in stock. 
The plugs are thoroughly cleaned before being re-purposed. I have never seen a pink spark plug in all my years working on cars.
 
Hand made at our workshop in East Lothian, Scotland.
 
Thanks,
Steve at Bespoke Retrocrafts.