Pop! The Party Bun

You know your good friend Fatty Fox always turns into a silly balloon on his birthday, usually at his party. But as he blew out his candles something different happened. He turned green and began to expand, like usual, but his ears suddenly popped into bunny ears, his body growing more curvy and his tail shortening. Aa they touched down on the grass, the sharp blades that would normally pop a balloon, suddenly inflated into soft rubber. The new bunny laughed as they looked themselves over. An aura of extremely powerful silliness radiating from them.