Cartoon tattoo idea advice?

Here's the tattoo I made on photoshop, I thought it would be funny as tattoo as they look like they're drawing on my body. Tell me what you think. http://postimage.org/image/7ul08dp43/

I was trying to think of something better that the blue guy could be drawing to make it less obscene, but still funny, any suggestions? and I also have no idea where it would look best on my body
It's my own take on a cyanide and happiness cartoon, but for a tattoo

he could be writing the word 'stupid'. or the word 'obscene'. or how about 'i like writing' then they could be the imps of tatooing could also be writing 'tattoo'. I think the 'i like writing' one is better