Cake cutter and server?

Do we really need to bring our own cake cutter and server to the wedding or could we just use the RH's? The only server we have is the one for our china.
We are bringing our own champagne flutes but thats because FH's aunt gave them to us engraved from Tiffanys.

Are you ladies bringing your own or just using the RH's?

I will probably be bringing my own but if I wasn't I would just make sure the hall knew that I needed to use theirs.

I registered for a nice set but if I don't get them then I'll either just buy those or a less expensive set, just to have. They have some inexpensive ones at Michael's.