In harvest moon ds how do you find the cursed watering can?

You can find curse tools on these Floors 24, 35, 48, 52, 68, 71, 87, 99, 106, 118, 124, 135, 142, 153, 162, 178, 185, and 197. No telling what tool it will be

The tools are random. Save the game at the start of one of the above floors, dig around, and when you find a tool, load the game, go to the same spot again and it will be one of the six cursed tools. If you're not happy with the fishing rod, load the game again and repeat until you get the one you want.