Decorate the kitty party hall with the idols of Ganesha. In contrast to the theme you can make arch at the entrance with purple color balloon affix with the yellow and green balloons in the shape of flower. Place an idol of Ganesha in the middle of party hall and place statue of elephant and mouse at the feet of Ganesha. Decorate the party hall with flowers. Place thalis of ladoo at the table in one corner of your kitty party hall. Use colourful dupattas to be used as drapes. Make rangoli at the party floor. Use yellow table cloth and keep a small idol of Ganesha on each table for the centrepiece.