Sponge-pik-omer

http://steepshot.org/api/v1/image/0671ed62-66a5-47fa-b3d7-cf98cde50396.jpeg

This crazy characterfusion was made in 2012, and will always remind me of the beginning of the High school era, and we went on a week long trip with the whole class to get to know each other better. I was sharing a room with a strange girl, but we both loved drawing, and so we did some drawings, and this was the first thing that came into my mind...

My mother hates this piece, even if the rest of my viewers laugh about it, but who would have thought that I would sell this picture 6 years later... I didn't.

can you name all 3 characters?