Make sure you use a really flat surface for your bench hones. Machine-flattened piece of marble or granite would be an excellent option because it's perfectly flat and looks good. Your other option would be MDS and it's DIRT-cheap.

Ceramic tiles would NOT work for this application. Read up on the bench-hone thread that I started as lots of skilled people chimed in with excellent advice that helped me come up with something that looks like it will work and look good while at it.