Fake Crack |work| With Baking Soda And Orajel Zuschauen — How To Make

To get that "rock" look, props are often made by melting clear alum (a type of salt) or using "shatter" (a sugar-based glass used in stunts).

Unflavored, clear rock candy is the industry standard. How To Make Fake Crack With Baking Soda And Orajel Zuschauen