This guy's wearing a buffalo headdress and leggings/loin cloth combo
While this guy's got an angry expression, some war paint, and a feathered spear. (see the smurf with the boom mike and headphones in the back?)
Note the mid-war whoop pose on that center one.
The thing about these little figurines is, I have one. My friend Scott has them in his office (he's Native). The associate director of the Native program at my school has some. I can only speak for myself, but I bought the one I have (he's in a canoe) because I thought it was hilarious and should be so offensive, but, it's a smurf, so you can't help but smile. Sometimes you just have to laugh at the ridiculousness, because I find it tiring to be angry all the time. By buying the figurine I realize I play into the stereotyping and mis-appropriation, but at the same time having it in my room as something ironic and silly makes me feel I have more power over it. It's a give and take. :)
(Thanks Virtue!)