I took 3hrs instead of 1hr, coz of bentonite clay. Noticed cracks after 2 days.
Suggestion: Don't use pure Bentonite Clay.
Eco-friendly Ganesha idols are those that are made of clay, natural fibers, paper and other biodegradable materials. I used only clay in this video. These idols, when immersed in water degrade faster and do not harm the environment as much as the ones made of POP.