Musk fans travelled for thousands of miles to pick up one of the first 1,000 fire sticks from The Boring Company's offices in Hawthorne, California.
Justine Ezarik uses a Boring Company "Not-a-Flamethrower".
Tweeting from Hathorne, the Tesla and SpaceX chief executive added: "Due to recent regulatory/customs rules enacted to inhibit transport of anything called a Flamethrower, we have renamed our product: "Not-a-Flamethrower".
The device shoots a two-foot flame.
Musk said on Twitter in early February that the items were sold out after just five days of market availability, but fear not; for those willing to shell out a pretty penny there is still the option of copping one of the popular flamethrowers on e-commerce site eBay.
While it may seem like just fun and games to some, people are already burning things down that should probably be avoided, and using the for-sure flamethrowers in ways that violate the terms of their purchase.
"Anyways, we are hosting a Not-a-Flamethrower pickup party in Los Angeles on June 9, 2018, from noon to 5 pm".
Musk tweeted that the instruction manual drew its inspiration from Dr. Seuss' "Green Eggs and Ham". "Even though it's written in a joking manner".
After customers took the flamethrowers home they started sharing pictures and videos on social media. Musk posted pictures of customers with their flamethrowers on his Twitter account.
While others used the device to toast the top of creme brûlée...
Not all of the images depicted safe or controlled use of the machines, however. She accidentally burned a section of her garden's artificial grass when making a cooking video.
And then there's this guy who appears to have lit up something else...
While most customers were thrilled about the idea of owning and using a flamethrower, there were some who expressed concerns about it being misused by minors and criminals.