An apparatus includes a base; a reservoir connected to the base and configured to hold a fluid; a first vessel having a first volume and configured to be removably connected to the base; a connection configured to deliver the fluid from the reservoir to at least the first vessel; and a second vessel. The second vessel is configured to be disposed at least partially within the first vessel; configured to be removably secured to the first vessel; includes an aperture that allows for fluid communication between the second vessel and the first vessel; and has a second volume that is less than the first volume.