As stated over on the cellar, the front legs were natural nubs, but the rear legs were tips of other potatoes that were added. Otherwise it wouldn't stand upright. And it probably does look more like a seal. But, hey, when you're a potato, that's the top of the heap.
Heh; things do get around on the web. I confess that Wally is one of my aliases and I posted that on cellar.org. Glad to see it here, and Brinks is ecstatic, but he's that way most of the time..