Bella has a strange affection for socks–especially the striped one she stole off a stuffed toy elk. Not just the usual “oh, look, a sock to chew on,” thing, but “I think I’ll wear this and look like Alf.”
Notice that the sock hangs off her nose a bit, giving her a proboscis:
Thus, she resembles, more than usual, the ‘Satiable Elephant’s Child.
Even more so when she decides to stretch the sock by playing tuggy with it:
See the live-action version of Sock Tuggy: