YES! i strongly recomend you try this as it is very amusing.
You should not paint tortoises because it can affect their skin.
Yes!
Patrons
Yes ! Yes you can paint on a shell if your brush is thin , I tried it
You can paint their shells. Acrylic paints or nail polish work well.
you have to paint it urself (but it is not good for them)
Diatom shells
they animals need lots of food
sure! why not? It is a form of calligraphy, which is permissible. What is impermissible is drawing living animals and people.
Diatom shells
They used candle smoke to paint their names on the cave wall.
Nothing; All paint is bad for crabs, so don't buy those pretty painted shells for your hermit crabs or a crab in a painted shell. They are cruelly forced into the painted shell and are more likely to die when you bring them home. Also, they will eat the paint when it chips off and die.