One design I'm very drawn to is the bronze-age beaker vessel:
|Bronze age beaker|
This form is incredibly beautiful, yet highly functional too. The flared rim created an angled lip which is comfortable to drink from and easy to grip with one hand. The rounded base would have been pleasant to hold in both hands as well as being suited to uneven, earth floors; when half full of liquid, it would be quite difficult to knock over.
The colours of these ancient works of art are also wonderful. There are the burnt hues created when the iron-rich clay was fired, probably in an open bonfire, the chips and scratches from everyday use..and then the earthy patina acquired from being in the ground for many hundreds of years.