3 small objects that embody the earth and/or its culture?

hey i need three travel sized objects that, if the earth were destroyed, would preserve the earths memory. these objects can be cultural, culinary, whatever i just need 3 thank you

Public Comments

1. The Rubics Cube, A globe, and an MK47
2. some sea water, soil, and some air.
3. A skull, solar panel, and salad. The skull symbolizes that there's life on Earth. Solar panels tell that there's a civilization, as well as showing that it is a spacefaring one. Salads (with both meat and plant) would show both that Earth has plants, and that the civilization could prepare special meals, instead of just straight eating the meat or plants.
4. i would say: 1. a history textbook 2. i like the globe idea 3. trivial pursuit pop culture edition
5. DNA (human, animal, and plant), soil, water.
6. A laptop. A zoology book. And me. Cuz I want to be preserved if the earth was destroyed. I promise to tell the aliens how to turn on the laptop and open my Powerpoint presentation on dolphins and ponies.
7. 1. .357 S&W magnum; 2. Picture of DaVinci's Mona Lisa; 3. Bic disposable razor.