What is the ruling on hanging decorations that contain blue beads alongside the Qur’an in the home merely for adornment, knowing that they do not protect from envy and that Allah is the Preserver?

First: Hanging the Qur'an on walls is not permissible and involves prohibitions.

Second: There is no harm in hanging decorations that contain blue beads for adornment, as long as it does not involve a corrupt belief, such as believing that they bring luck or ward off the evil eye. However, it is better not to hang them to avoid imitating erroneous beliefs, inviting ill-suspicion, and setting a negative example.