Do the customs have any special inspection or regulations on taking some souvenirs when traveling abroad?

"Happy Journey" answers for you: Many tourists who travel abroad will take beautiful shells picked up by the sea or a small bottle of sand at home by the sea as souvenirs, which is meaningful and romantic. However, you are likely to be detained by the customs at the last minute before leaving the country and get a huge ticket, because your "souvenir" is contraband. The laws of various countries have very detailed regulations on contraband, at least at airports. For example, South Africa prohibits bringing any ivory products out of the country, even if they are purchased through formal channels. So, don't let the plane ticket ruin your trip.