What corporation provides the props, like anvils, to the Loony Tunes characters?

The "Acme Corporation" is a mysterious conglomerate that appears to make every product imaginable—from rocket-powered roller skates to dehydrated boulders—across several fictional universes. It’s a ubiquitous go-to name for cartoons (thanks largely to its repeated use in the "Road Runner and Wile E. Coyote" segments on "Looney Tunes" and "Merrie Melodies"), but also the name of plenty of reputable, real-world businesses.

"Acme" isn’t a made-up word or a jokey acronym but comes the "Greek' 'akme" (the "highest point” or “peak,” and often used to mean the best of a category). Its heavy use in cartoons comes from its popularity as a name in the era when the "Yellow Pages", an alphabetized US business phone directory, and other alphabetized phone directories became common.

There was a flood of businesses named Acme; some survive to this day, including "Acme Brick", "Acme Markets", and "Acme Boots". Early "Sears" catalogs contained a number of products with the "Acme" trademark, including "anvils", which are frequently used in "Warner Bros." cartoons.