All of that on the cake, plus the cookies and cupcakes, and she thinks she can get all that for $150??? No way. I'd tell her to go find someone else to do it. Covering those huge dummies is already going to take a ton of fondant, plus buying the dummies, putting all the silver dragees on by by hand, etc.....nope, nope, nope, sooooo not worth your time for that small amount of money. I'd tell her you will do cookies OR cupcakes OR a smaller tiered cake, like a 4in, 6in, 8in which would be more than enough to feed 30 people. I mean, what the heck would they even do with the ridiculous amount of cake they would get from a 14in, 16in, 18in?? Sounds like they are just being absolutely ridiculous. Trying to make everything "grand" at a baby shower so you can try to pretend you have tons of money when you really can't afford it just makes you look foolish.