Now this one I just had to share. I personally think its one heck of an unusual and funny costume. Look!

Flamingo Costume

Flamingo Costume

I am sure, you don’t have to stand on one leg the whole time. They will notice you even so. I you look at the selling page, there seem to be some objections. They agree, it was great fun, but you need to fix the leggings, and also the head part seems to slip over the eyes, if you do not adapt.
You will get a bright pink jumpsuit, a hood and black legs/feet. Its also available in Child Size.