Cat with heterochrmia: one eye blue, the other green

Firecracker created craters on mud

I tested triangular-shaped firecrackers on three differing types of mud based on hardness. The result is amazing.

 Test on almost hard mud

 Test on medium hardness mud.  This one created a halo-shaped smoke ring.

Test on soft mud.  The edges of the crater looked like it is being peeled away.