In the café where I work, somebody tried introducing pasta, spaghetti in particular, in place of purpose-made wooden sticks, for stirring hot drinks, as it was thought to be more "environmentally friendly".
A number of other people recommend the same technique:
Each year, Americans throw away 138 billion straws and stirrers. But skipping the stirrer doesn’t mean drinking your coffee black. Simply put your sugar and cream in first, and then pour in the coffee, and it should be well mixed. Determined to stir? Break off a piece of pasta from the cupboard! You can nibble after using it, compost, or throw away with less guilt.
I was told it's more environmentally friendly* than using wooden stirring sticks, and I believe it. I haven't really run the numbers though. I don't know where to get the numbers.
Which of plastic, wood and pasta is more environmentally friendly?
For the purposes of discussion, take "environmentally friendly" to mean less air, water and land pollution, as a by-product of both production and disposal. Air pollution can be taken to include carbon emissions.
Additional note: this is expressly about aspects of the service industry, where the re-use of regular spoons doesn't meet hygiene standards and stirring implements are necessarily disposable. Somebody else added the "grab it from your cupboard" excerpt in order to demonstrate notability criteria for this site.