The classic churchkey style bottle opener is about as fundamentally invaluable as an object can be.

Bottle Opener

Fundamentally Invaluable

The simple "churchkey" bottle opener exemplifies invaluablism. These ubiquitous and inexpensive little tools are extremely dear when you need one. In other words: "invaluable".

Churchkey Renaissance

The popularity of craft brewing has driven continued relevance of this classic tool. You will not find many twist-off caps in the micro-brew aisle. Most craft brewers use traditional bottle crowns to cap their beers, requiring some sort of tool to open them easily. Contemporary beer drinkers need these decidedly old-fashioned tools.

Endangered Species

Save your churchkeys; they may be endangered. Because of the inexpensive nature of this simple tool, variations on the theme are numerous. Give-away marketing versions abound in many different forms. Consequently, paying for one almost seems silly. But try finding the old-school churchkey article for free and you will quickly find that this style is out of fashion. And, as described below, one-half of its raison d'être ("can tapping") is today passée. For anyone seeking churchkey verisimilitude, at home or maybe for a proudly invaluablist short term rental, see the nearby aside for links to buy new versions of this old staple.

"Can Tappers"

The churchkey features two primary functions; removing bottle caps and "can tapping". But with most canned beer featuring pull tabs today, or other clever quick-opening mechanisms, can tappers are not called upon by beer drinkers anymore. Meanwhile, motor oil, another staple canned product necessitating a can tapper, mostly now comes in plastic bottles that don't require can tappers either. The dual-purpose churchkey is holding on to relevance, but just barely.

German promotional bottle opener obtained as a souvenir in Berlin decades ago; has a very satisfying feel when utilizing. Wish I could find a source for these today.