For masts I use bamboo. I like it for its durability and because its in expensive. A package of bamboo scewers runs around $3 and holds enough for several ships.
I cut my bamboo in section long ways and use a drawplate to get smaller round sections. I then put these pieces in a drill to smooth them out and add a bit of taper. Tapering masts and yards really adds to the realism and doesn't take to much extra time. As a cautionary note, don't spin wood in dremels. They spin way to fast and very often the wood gets off center and becomes a projectile. Drills are slower and safer.
Once I have the mast cut down and sanded I measure it up to the plans and cut it to size. The same process applies to the top mast except its cut down even smaller.
From here I cut a couple small blocks. And glue then where the mast doublings are on the plans. I then glue the top mast to these blocks. This creates a small space between the masts which is cteated by the cross trees.
From here I cut out some strips of paper and stain them with wood stain. The paper is glued on and wrapped around the mast creating the cross trees. This also helps hold the two pieces together.
For this ship I'll be using the hinge method. It's a great place to start on ship in bottle building. To make the hing drill a small hole in the base of the mast, insert a piece of wire and bend it down.
Drill a couple holes for either side of the hinge where the mast will be placed on deck. Then trim the wire until it hits the bottom of the holes at about the point the bottom of the mast just touches the deck. Glue the wire in place.
Test the hinge to make sure it works well.
This is a good opportunity to test how well the ship fits in the bottle. The mast works fine but my channels are a bit to wide. Gotta fix that.
One more note on masts. I typically don't drill a lot of holes in masts. The holes can easily cause the mast to break. Thinner masts look more realistic but are more fragile. To keep them strong I will be using knots to put on the yards. How ever for this build there is one more hole needed in the mast. It goes where the boom connects to the mast and will help with rigging the boom.