Evolution - started with the square shape, handle being that of a exhaust pipe and added ornamental push-rod tubes. Eventually I scrapped the handle, creating a finger grip and made the push-rod tubes more of a rendition.
3D Print used to create plug for 1st design mold. Plug was printed and sealed.
Changed my mind about the design and decided not to mold this one.
3D print used to create final design plug and mold
De-molded mug that has been cleaned and smoothed prior to firing and glazing.