The spinning top from the movie Inception, modeled by comparing scenes from the movie.
It is about 30mm tall (1.2 inches) and about the same width; it is a slightly larger version of the original YAITO, which I find very comfortable. The YAITO I own is stainless steel and will spin for over a minute; the puckered texture gives it a nice feel and somehow the outer curves are very smooth.
One word of advice: As with the smaller version, tempting as it may be, try not to spin it on a nice wooden surface, it may scratch it and in some cases dig itself a comfortable dent to rest on (see picture). Then again, sometimes you want an excuse to buy a new desk :)