Ack. Cobey Danger would be fine if your son stayed five years old forever. I wouldn't go to a doctor named Cobey Danger X, or hire a lawyer named Cobey Danger X, or get my car fixed by a Cobey Danger X, or vote for... you get the picture :)
Same goes for Tobey - as the above commenter wrote, I'd go with Tobias, which is an elegant, strong and uncommon name, and can still be shortened to Toby.
Your girls' names are great. My name is Eva and I've never met anyone with the same name, although it looks like it's getting more popular! I never used to like it much, it's been growing on me :) Eva Charlotte is quite nice if you like both, unless you'd like to save Charlotte for a future daughter, of course!
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Same goes for Tobey - as the above commenter wrote, I'd go with Tobias, which is an elegant, strong and uncommon name, and can still be shortened to Toby.
Your girls' names are great. My name is Eva and I've never met anyone with the same name, although it looks like it's getting more popular! I never used to like it much, it's been growing on me :) Eva Charlotte is quite nice if you like both, unless you'd like to save Charlotte for a future daughter, of course!