You can get these custom made security grills from "Art of Metal" in the UK.
Stone gate cemetery gates, Yorkshire, from the War Graves Photographic Project
Unique iron gates designed with rocks. #iron #gates
Each family member gets a celtic knot. You can burn them into wood, stamp, emboss or embroider them to label belongings, rooms, etc. When a child gets engaged, give their spouse an individual knot that can be combined together with the other.