Where Can I Find A Printable Boy Or Girl Test???

One of my friends is pregnant And we just want to do one of those Silly, Boy or Girl Test to her, But All I've found are interactive, pregnancy test, and what we need is the printable version so we can do it at school (Which is where we see each other), We really want to quiz her so PLEEEAAASEEE, if you write it out or tell us where we can find one tell us, We all woud apreciate it.