Add ice cubes and blend the mixture one more time.
Mix cucumbers and ice with the liquid (cat milk or yogurt).
Pour the mixture into the ice cream trays.
Put sticks inside the molds. Place the ice cream trays into the freezer.
Wait up to 5-6 hours to make the dessert frozen.
Notes
This recipe can be repeated with fruit ingredients like banana and kiwi as well. Store ice trays with vegetable or fruit cat ice cream for no more than 2 weeks.