I would put in,

1. My MP3 player, a nifty gadget indicating my love of nifty gadgets.

2. A favourite book, probably "Protector", indicating my need to
expand my horizons.

3. A compass, indicating my need to know where I'm going, unable to throw caution totally to the wind.

4. A photo of my family, indicating where I came from.

5. My Tektite, a kind of space rock, indicating my jealousy that it's
been to space and I haven't.

6. A custard tart and a mini bottle of Scotch, indicating my self
indulgence.

7. A photo of Lilith, 'cos I can.

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Calm, quiet, smooth, devastating