Wanted your feedback on our top name choices-
Dashel [name]Griffin[/name] & [name]Fiona[/name] [name]Cosette[/name]
Why don’t you go with the more familiar spelling of [name]Dashiell[/name]. It may spare him having to explain a lifetime of how it’s spelled “Dashel, no I and one L”.
I love [name]Fiona[/name], but I’m just no crazy about the name Dashel personally. They do sound like a good match, though. I agree that you should spell it [name]Dashiell[/name] if you’re going to use it. It just seems more authentic.
I think both names are great 
I agree with the comments about the [name]Dashiell[/name] spelling and agree that these two work well together!