Is it permissible to keep two bones that have been surgically removed and display them for decoration, knowing that keeping them does not lead to harm?

It is recommended to bury all detached parts of a living being, such as hair, nails, and bones, as a sign of respect for humans and to preserve their sanctity. This is unless retaining them is for legitimate medical or educational purposes, done in a manner that befits human dignity, or if there is a necessity to conceal them, such as a woman's bone, which must be concealed by burial or similar means. It is disliked to keep them for adornment or as souvenirs due to the frivolity and degradation involved, and it might lead to their use in sorcery.