First off, Clavicle fractures are very common. Not much to worry about since practically all of them heal on their own. Because of this fact, doctors immediately say you dont need surgery for it. Certain circumstances though(open fracture, compromised structure due to misalignment) an ortho will do surgery immediately. Otherwise, they won't even touch it. You can, however, insist having it pinned. Athletes almost always have surgery to regain most/all of their function back. Ask an ortho and odds are, they'll say "...completely up to you"
Next, I'm under the impression the doc you saw has little experience with sports injuries. Figure of 8 straps/splints is the common/automatic type they'll order. This will also put a lot of pressure on the fracture area and will be very painful! An ordinary immobilizer (think sling strapped on to your waist) will support it just as good, maybe even better.
Keep the shoulder, elbow and wrist moving. It speeds up the healing and keeps the joints from getting stiff.