Snoopy, mannequins and Apollo 11 items will swing by the moon aboard Artemis I - CNN

As part of NASA's collaboration with the European Space Agency, which provided the service module for Orion, a small Shaun the Sheep toy will also be an Artemis passenger.

The character is part of a children's show spinoff from the "Wallace and Gromit" series.

Four Lego minifigures will also ride in Orion as part of a continuing partnership between NASA and the Lego Group, in the hopes of engaging kids and adults in STEM (science, technology, engineering and math) education.

A space time capsule

The Artemis I Official Flight Kit, which includes thousands of items, holds a variety of patches, pins and flags to share with those who contributed to the inaugural flight once the capsule splashes down in the Pacific Ocean in October.

A number of the items -- such as space science badges from the Girl Scouts of America, digitized student visions of lunar exploration from the German Space Agency and digital entries from the Artemis Moon Pod essay contest -- honor the contributions of students and teachers with an interest in STEM.

A variety of tree and plant seeds will be on board in a nod to a similar tradition that began during the Apollo 14 mission.

NASA will share the Artemis seeds with teachers and educational organizations once the capsule returns.

Several Apollo items are along for the ride, including an Apollo 8 commemorative medallion, an Apollo 11 mission patch, a bolt from one of Apollo 11's F-1 engines and a small moon rock collected during Apollo 11 that also flew aboard the final space shuttle flight.

The European Space Agency shared a postcard of Georges Méliès' famed "A Trip to the Moon" artwork for the flight kit.

And the Israel Space Agency donated a pebble from the lowest dry land surface on Earth, the shore of the Dead Sea, to travel on Artemis 1, a flight that will venture further than any human has gone before.