They Keep it in the Sack with the Other Jewels

d12
1. Odin's blackened thumbnail, lost in domestic dispute with Thor, of inestimable value to collectors of Norse ephemera
2. Keys to working motorcycle with full tank on Dungeon Level 9
3. Tiny gem-encrusted sarcophagus of the Micro-Paleo Pharaoh complete with wee animate mummy (disease-free) who shrieks out for vengeance if released
4. Single platinum coin from million year-old civilization, works in all coin operated machines and always ejects through the change chute
5. Pair of lozenge-shaped Digestive Aids of the Gods, swallowed fragment enough to eliminate need to consume food but kills the subject in a fortnight
6. Super-genius cockroach encased in amber but still more than willing to field questions (telepathically) about science and philosophy
7. Salt shaker-like container loaded with the crystaline Essence of Pure Deliciousness
8. Shard of solid sun fire in heat-proof box, burns like hell if opened
9. Polished stone False Eye of the Gorgon: if installed into empty socket mimics Medusa's gaze
10. Fossilized angel egg (still viable)
11. Hand-sized ingot of totally impervious, utterly unworkable space metal
12. Leather pouch with ounce of stardust within, scintillates brilliantly if sprinkled, causes permanent condition of levitation if ingested (straight up to the heavens unless somehow anchored)