This tiki mug is sort of lava lamp shaped with a very tiny aperture at top that requires a funnel to fill it.

From B-Rex:

"Choose between the matte "BONE WHITE" or the glossy "BLACK & BLUE".

Each mug comes with 1x collapsible rubber funnel and 1x original recipe card.

Material: Ceramic

Size: 8 inches H

Capacity: 9 oz

Producer: Munktiki Imports

Design & 3D Sculpt: B-Rex"