25th Wedding Anniversary

For my life skills class I have to throw a 25th wedding anniversary. I`m only in high school and the only attendants will be high-school girls. Well, I need to have some games or something for them to play and I`ve been searching the web for days and haven`t found anything. If anybody could please help me out with games you`d play at a anniversary party then I`d appericate it so much.
Thanks.