Buzz·Posted on Jun 10, 2013Cool Mom Makes Subway Sandwich Cake For Son's 20th BirthdayReddit user SailorV3nus posted photos of the Subway birthday cake his mom made for his brother's birthday.by Hunter SchwarzBuzzFeed StaffLinkFacebookPinterestTwitterMail He said the top bun and everything in the sandwich were made out of icing. And the cup and bottom piece of bread are made of sponge cake. It looks ... delicious ... Happy birthday, James.