quisp

I have seen some photos of cars with slats going across the lower area of the front where the mesh is on mine. I have searched but not been able to find out whether this is something that can be done or where to find the parts. Not sure about doing it but wanted to find out more info so I could see if it is even possible.
Does anyone know? Also, any recommenations for places to look for aftermarket lips. There doesn't seem to be that juch out there that I can find so any suggestions of places to look would be greatly appreciated.
Thank you