Copper or Bronze Granulation

I am currently a senior art student studying metal under Charlene
Weidell @ University of Oklahoma. I am wanting to use the process of
granulation on a box that I am making. The box is made of copper and
brass. I was trying to find out what type of metal granuals would be
best for copper and bronze and if this is actually possible. Also
what would be the best bonding agent to use. If anyone could help me
out I would greatly appreciate it.

Thank You