The Tricorder was crucial to the survival of U.S.S Enterprise crew members. There’s nothing as important to you when you are landing on an alien planet than a gadget that scans everything and tells you everything you need to know. Perhaps the bright folks at SpaceX could do with a little help on their Mission to Mars. Maybe if they had a tricorder, they would be building an outpost there by now. This Star Trek Tricorder Hallmark Keepsake Christmas Ornament with Light and Sound hangs from your Christmas tree and just looks awesome. It doesn’t just light up when you hit the switch, it also plays authentic phrases from the episode “And the Children Shall Lead” of the original Star Trek series.