Star Wars: Galaxy’s Edge is an immersive experience for fans, but some souvenirs are better left in a galaxy far, far away. The Transportation Security Administration (TSA) has confirmed that certain bottles from Disney Parks aren’t allowed on planes.

The issue is with some plastic bottles. A concerned Twitter user asked TSA if the Coca-Cola bottles designed specifically for Galaxy’s Edge are an issue. The Sprite, Coke and Diet Coke bottles all resemble grenades. They are, in fact, designed to look like thermal detonators that stormtroopers and bounty hunters use in the “Star Wars” films. Apparently, they look a little too deadly.

“Replica and inert explosives aren’t allowed in either carry-on or checked bags,” the official Ask TSA Twitter account replied.

In an interview with the Orange County Register, TSA spokesperson Jim Gregory emphasized that although harmless, it could set off some very real security scares. “It could create concern that it’s the real thing,” Gregory said.

Announced earlier this year, Coca-Cola designed four beverage bottles specifically for the new areas in California’s Disneyland and Florida’s Walt Disney World. The Coke, Diet Coke, Sprite and Dasani bottles have all been changed. The sodas look like thermal detonators while Dasani still looks like a water bottle (though it’s a different shape than Dasani uses for standard bottles). They all have Aurebesh language on the labels to add to the immersive experience.

The TSA advice comes just ahead of Star Wars: Galaxy’s Edge opening in Walt Disney World on Aug. 29. The Disneyland location opened on May 31.

Star Wars Galaxy's Edge Coke bottles
Special Coca-Cola bottles from Star Wars: Galaxy's Edge are not allowed on planes. Disney Parks