Although its intent is humour, fans have quickly noted that it's not okay to be poking fun at Kanye's mental state.
Kanye spent a long while out of the spotlight after he was hospitalised for suffering "temporary psychosis," and now fans have taken to Twitter to speak their minds.
The artist behind the inflatable, Hungry Castle, have now responded to the backlash, saying in a statement that, "Yesterday we announced plans to build a tribute sculpture of you.
"It’s based on an internet meme titled Sad Kanye and as artists, we believed it would be an interesting platform to spread a message of positivity and good vibes. The concept is simple, we plan to invite the entire world to climb inside your mind and make you happy.
"Our work is based on the internet, celebrity figures and meme cultures. It was never our intention to start a dialogue about mental health issues. But as you know more than anybody, great art can often be divisive and is ultimately open to the interpretation of the public.
"We want to thank the internet for opening our eyes to this viewpoint and we now see how this project could be viewed as insensitive. We believe mental health is a serious issue and if our art is bringing awareness to this (even if accidentally) than perhaps just perhaps that’s a good thing."They have also decided to make it "Happy Kanye" rather than "Sad Kanye."
If you, or anyone you know are suffering from mental illness, contact Beyond Blue at 1300 22 4636, or visit their site.