Well Endowed Zentai Suit
I see your Little Green Man, and raise it one Huge Green Man. If you prefer Orange, Red, Yellow, Blue,, Purple, or Never-Go-Back Black, I have Zentai suits in all of those extra-tight, extra-long-schlong colors too. So what exactly does one who buys an 11% Spandex, 89% nylon bodysuit blessed by the God of Fertility dress up as for Halloween? That is for you and your imagination to decide. If it were me I'd either keep it simple, get the Gray Zentai, and go as an elephant, or keep it simple, get the Red Zentai, slap a potato on the shaft, and go as a dictator.
Well endowed Zentai suits have an open-face style rather than the traditional full body sock construction so everyone will know who the genius who decided to show up both in and with his long johns is. The suits' floor-length appendage is filled with vacuum cotton.