I really need a fake pregnance belly where can I get one?:)

Why do you need one?

Why? And why is everyone wanting to fake pregnancy?

Because my sister is pregnant but me and my partner are bringing the child up as our own so I was thinking about getting an empathy belly. Baecause trying to eat loads and put weight on isn't working. Some of my family know about this but my partners don't and when I was pregnant they were xausing problems for me so my child died, that is why we want it to look like I was pregnant but none of them will no till the baby is born anyway. So do you know the cheapest place to buy or hire one from or even make one to make me look as if I am actually pregnant? :)