DS3 goes to school with a Felix, Milo, Harvey, Douglas, Gareth, Mimi. It must be the area, they don't seem to have the huge influx of Daniels & Aarons that seem more common elsewhere (Y6). I wanted to call him Warwick, but DH had a fit & wouldn't even consider it. He wanted to call him Roger.. (& got the same reaction from me!!)
DS2 has a name I've only ever seen elsewhere in US film credits, & then rarely. Most people on hearing it for the first time query it & pull a face, but once you're used to it, it's just him. (Unfortunately because he also has auburn hair & ADHD he stands out like a sore thumb.. perhaps I should have gone for something anonymous!)
The other 2 have old names that are relatively uncommon, tho putting DD into independent school she found that a huge number of her new friends had a brother with the same name (& a sister called Chloe!).
Isn't it hard to explain without giving too big a clue!