Empty oyster: where to get it
| Source | Quantity | Chance per roll |
|---|---|---|
 Ammonite Crab | 1 | 3/128 |
| Ammonite Crab | 3 | 1/128 |
 Giant Lobster | 1 | 3/128 |
| Giant Lobster | 3 | 1/128 |
 Hermit crab (Active) | 1 | 3/128 |
| Oyster | 1 | 7/32 |
 Rock Crab (Active) | 1 | 3/128 |
| Rock Crab (Active) | 3 | 1/128 |
 Sand Crab (Active) | 1 | 3/128 |
| Sand Crab (Active) | 3 | 1/128 |