My daughter's nickname is "Bubbles". For her 11th birthday she asked for a bubble party.  The cake was done in white with a blue trim.  To represent the bubbles on the cake, I used clear x-mas balls that I sprayed glitter in.  I placed the "bubbles" on the cake in groups of 3 or 4 and intertwined blue and silver ribbon.  This is the prettiest cake I have ever seen. The gift bags, I made out of Bubble Wrap.  You can hot glue the sides and then I used the same color ribbon used on the cake to tie the bags.  The bags included items from bath sponges, bubble bath to Bubblicious Bubble Gum.  The party was a huge hit. I also packaged the bubble bath myself and made labels on the computer naming it "Katelyn's Bubblicious Bubble Bath".