[Josy]

I think taking them to the ex's parents is a good idea, then they can pass them on and your ex won't think it's a way of trying to see her.

She might not want to accept them though but that would be unfair on her daughter if she done that imo, if the little girl was close to you it might also do her good to know you still care about her because she probably misses you after having you around for a while.