Sure, let's create a test case generator for the given problem statement "Problem F: Ben Toh".

### Test Case Generator for "Problem F: Ben Toh"

The generator will create random test cases within the constraints provided by the problem statement. Here, we only need to generate one integer `n` for each test case.

```python
import random

def tcgen(num_cases=10):
    # Generating multiple test cases
    test_cases = []
    
    for _ in range(num_cases):
        # Generate a random number of days between 1 and 100000 (inclusive)
        n = random.randint(1, 100000)
        test_cases.append(n)
    
    # Adding the termination case
    test_cases.append(0)
    
    return test_cases

# Example usage:
if __name__ == "__main__":
    cases = tcgen()
    for case in cases:
        print(case)
```

### Explanation

1. **Function Definition**: The `tcgen` function generates a specified number of test cases (`num_cases`). By default, it generates 10 cases.
2. **Random Test Case Generation**: For each test case, it generates a random integer `n` between 1 and 100,000 inclusive.
3. **Termination Case**: After generating the requested number of test cases, it appends the termination case `0` to the list of test cases.
4. **Return Value**: The function returns a list of integers representing the test cases.

### Sample Usage

When you run the provided script, it will print out the generated test cases, including the termination case `0`, which should be the last printed value.

By using this generator, you can easily create a variety of test cases to thoroughly test your solution for the "Problem F: Ben Toh".