Can you wear a 2 ball cane emblem?

Yes, if you are a Master Mason.

Personally, I believe if you do, you must NOT wear any other commonly recognizable symbols, emblems, rings, or pins at the same time. There is nothing official that says this, but if you are wearing a symbol like this, it is (or should be) because you wiant only to be recognized by other Masons. Wearing well-known and uncommon symbols together will eventually reduce the effectiveness of the unknown. Even though it's not a secret per se, it let's people outside the fraternity become aware of our little-known means of quiet recognition. Although there are other symbols, we don't really want to "ruin" this by allowing it to become widely known to nonmembers. In that regard, I would respectfully suggest that you address your questions like this to other members of your group instead of posting on a public website. Good luck in your travels.