I got these for my boyfriend and we both love them. It is easy to use and the ice comes out looking fantastic. It is a small silicone mold and it comes with a funnel for easy filling. We experimented a little and found that the ice forms into the skull better if you boil it beforehand. You only have to fill one portion too, as the molds are all connected and the water distributes to each one equally.
I just love how awesome the ice comes out looking! And since the mold is silicone, it is really easy to get the skulls to pop out after they freeze. This item is fun for the whole family!