Certainly! Here is a test case generator for the "Dropping Ink" problem. This generator will create a series of random ink drops on a 10x10 grid, each with a random size (Small, Medium, or Large).

```python
import random

def tcgen():
    # Constants
    grid_size = 10
    max_drops = 50
    sizes = [1, 2, 3]  # Corresponding to Small, Medium, Large
    
    # Number of drops
    num_drops = random.randint(1, max_drops)
    
    # Generate random drops
    drops = []
    for _ in range(num_drops):
        x = random.randint(0, grid_size - 1)
        y = random.randint(0, grid_size - 1)
        size = random.choice(sizes)
        drops.append((x, y, size))
        
    return drops

# Example usage
drops = tcgen()
for drop in drops:
    print(f"{drop[0]},{drop[1]},{drop[2]}")
```

This script will generate a random number of drops (between 1 and 50) and for each drop, it will randomly choose a position on the 10x10 grid and a size (1 for Small, 2 for Medium, and 3 for Large).

**Explanation of the components of the generator:**
1. **Constants:** Define the grid size as 10 and the maximum number of drops as 50. Also, define the available sizes.
2. **Number of drops:** Randomly determine the number of drops to generate.
3. **Generate random drops:** For each drop, randomly generate the (x, y) position within the grid and pick a random size from the available sizes.

The output will be a sequence of drops in the format `x,y,size`, which you can feed into your "Dropping Ink" program to test its behavior with different inputs.