For the girls costume, I bought stretchy fabric for the skirt and sewed it to fit properly and cut two long strips for the suspenders. After the skirt was made, I sewed big yellow buttons onto the skirt. I took a plain white tshirt and used fabric spray for the polka dots. Add yellow ribbon in the hair and cut socks to make leg warmers.
For the boys costume, we bought yellow pants and a plain blue shirt. Buy yellow fabric and cut into squares. Write “HI” with a sharpie and sew onto the shirt. Buy your balloons that day, and your good to go! These costumes were so easy to make and they were a big hit. There are so many “hanging with friends” characters to choose from that all of your friends can join in on the fun!