Most sites to buy zentai/body suits make them after you place an order. You're not going to find a good quality one for under $40. As animenerd93 said, the fastest, cheapest you'll be able to find is at Party City, but they are horrible quality.
Every time I open the fridge, the hole in my jello glares at me.
Thank you for completely removing my signature without emailing me that it was too long.