For my son's first birthday I had a rubber ducky party since he had spent the last month of his little life carrying around and ernie and his rubber duck tub toy.  I had a CD with all of the ducky songs from sesame street and others.  We had blue kool-aid with little rubber ducks floating in it. We had a blue sheet cake with a duck cake on top (idea link form birthday express)  I also made cupcakes for each child with frosting in circles to look like bubbles and a small duck on the top (agift for each child).  I found the floating ducks that have the smaller ducks on their backs (the samll ones were used for the cupcakes and punch) I used the bigger ones to hold dip for fruit, chips and veggies.  The spread on the table was very cute. I also used the big duck tub from Target and filled it with all of the gooide bags.