The latest in Halloween costumes that can no longer be bought is the Illegal Alien costume.
An online store description of the costume gives this information:
Available in One Size Fits Most Adults.
Includes: Mask, Jumpsuit, Card.
Material 65% Polyester, 35% Cotton.
Care Instructions Handwash - Cold Water with mild detergent. Dry Flat. Do not bleach. Do not Iron.
Approximate measurements: Chest 48-49", Waist 48-50".
According to an article on nbclosangeles.com, [Immigrants Not Amused by ''Illegal Alien'' Halloween Costume] the costume (shown here) was available online at target.com,walgreens.com, toysrus.com, amazon.com, meijer.com and buycostumes.com.
After a bit of a row from "immigrants" the costume was removed from all the websites except walgreens and buycostumes. However going to those 2 sites, you'll find the costume is "out of stock".
I guess anyone wanting one now will have to make their own. Getting an "alien" mask should be easy enough......get your own orange jumpsuit and "green card"; and voilà!