This happens with my friend's daughter.
It is irritating.
And that same other girl, always gets chosen for 'awards' per 'her' projects.
Short of lambasting the entire school and its parents, nothing much can be done.
Or, you speak to the person in charge of the so called award, and ask them how projects are chosen for such awards.
And, then, even if you say so, how can the parent then prove, that a child's project was done by the parent and not the child?
If it was, their Teacher, should call them on it.
No it does not seem fair.
Per my friend and her daughter that this has happened to... well her daughter knows darn well, that SHE put in good effort for her project and is personally proud of it. So that is all that matters to her. But yes, her daughter does know it is not fair. But her daughter also knows, that that child or parent, is just not doing the right thing. And since she knows that, she can even more so, be proud of her work, because SHE did it... with her own mind and imagination without help.
And that is enough for her.
Sure, some parents do do their kids' projects.
I see that too at my kids' school. And yes, their Teacher tells me, that she does know. And she reminds parents, that the CHILD needs to do the work, and it needs to be their idea. But the parent can assist.... only by assisting. Not doing it. There is a difference.
But some kids, just do really nice work.