I've seen an article on this before and it's pretty fascinating. Not sure "fortnite" is a sentimental love....LOL.... but who knows.

A metal works company here used that idea and made a heart in the downtown that locks can go on. It's big ! You can use your own lock or you can pick a color and order one from them to engrave and then you can put it on the heart wherever you like. I think I did a post on it several years ago. I had one made with my brother's name with Love and Miss You. I know it was supposed to be more for lovers, but I wanted his name locked on there, so I did it.