This is a small watering can (you can scale it up if you want) in shape of a diamond. Approx. size is 14 cm x 7.4 cm x 6 cm.
Material: PLA
Layer height: 0.2 mm
Perimeters: 4
Top & bottom layers: 5 (to make it watertight)
Infill: 100% (to make it water tight)
Seams: rear
Supports: no need if you have good cooling (all angles are max 45°)