Here is an unfinished illustration of a tomato called Eva Purple Ball:
The SESE catalog tells me this tomato variety was developed in the late 1800s in the the Black Forest region of Germany and that it's one of the most blemish free tomatoes they've grown.
And a fun tomato fact: The largest tomato plant (a “Sungold” variety), recorded in 2000,
reached 19.8 meters (65 feet) in length and was grown by Nutriculture
Ltd. of Mawdesley, Lancashire, UK. -taken from tomatodirt.com
Wow, I wonder what kind of trellis they grew that on.