Gender Reveal

Hello ladies..So June 7th​ I will be finding out what I'm having. I won't be telling anyone, not even my husband. I have one boy (11) and two girls already(10)(4), so yes i hoping for a boy and so is everyone else lol. June 17th I plan on having a gender reveal party, I will be 17 weeks by then. I need some fun ideas, this is a new thing i see..Do you do the same things like a baby shower? Meaning games? Should I give out my info to where I'm registered so people can bring gifts? Obviously everything is neutral color. I just know I want to get a pink, and blue layered cake, with the color of the sex in the middle showing after being cut. Please help thanks