Okay, so thus far we have one vote in favor of the robeez knock-offs (thanks Annalea! So nice to meet you!), one strong vote pro-Robeez, and one vote anti-robeez, pro-Pedipeds).
Shown here is the Pediped "Harvey."
Anyway, all this to say that this discussion has not so much solved my children's shoe quandry as it has provoked another one: how do you pronounce that word, "Robeez"? B goes for "ROB-ease," while I think the correct pronunciation is clearly "row-bees." You be the judge.