LOS ANGELES — “When you travel through time, you always wanna pre-plan,” Macos Beltran said.

Beltran is a store clerk at the Echo Park Time Travel Mart, where they sell such staples as dinosaur eggs for people traveling back in time. However, if someone is on their way to the future, they can always pick up a can of “nanobots.”

However, the “slushy” machine is broken.

“Come back yesterday,” the sign reads.