I think this artwork is great: “My fake plants died because I did not pretend to water them”. I’m not sure where you can buy this from, but if you see where, please let me know. Discovered via many sources including Cysaphoto.tumblr.com.
Andrew Kelsall is a Graphic Designer from England who loves to work on various projects such as logos, posters and illustration. He authors the popular Design Blog AndrewKelsall.com. You can also follow his daily musings and shared links on Twitter and the dedicated Design Soak Twitter Account.
Not quite sure why you think the artwork is great. But it definitely is a great Mitch Hedberg joke.