I trimmed up the edges of the bases with a knife, then started painting. Pick a base color and several highlights. I started with a bright blue, covering the texturing on the base top. Also paint the plastic along the edges of the texturing, to make sure none of the white base shows next to the ship.
I wanted some nice bases for the Uncharted Seas ships I painted up. Like everything else I do, I looked for a method I could steal rather than trying to figure it out for myself. While poking around, I found some very nicely done ships on the Lead Adventure forums, and a (very) brief description of how the bases were made. Here I show how I copied the idea.
First, materials. You'll need something to serve as the base; I used 0.040" styrene sheet because I had it, but you could use any material you can cut to size and won't warp when glue is applied. You'll also need white (PVA) glue and toilet tissue, torn or cut into small pieces. I used a sculpting tool and a pair of tweezers to apply the glue and tissue to the base, but anything convenient should work.
Naturally, you need a ship to base. I wanted about 5mm of exposed base around the ship, so I added 10mm to the length and width of the model; for this ship, that came out to 33mm x 77mm. I cut a piece of styrene to size and lightly tacked the ship in place with a few dots of white glue. You will remove the ship later, so don't do anything permanent here. The lines are 5mm from the edges, and are just guides I used to ensure I had the ship centered and straight.
(Here I've tinted my glue blue so it is visible; white base, white glue and white paper do not make for good photography.) Spread a thin layer of neat PVA glue on the base, being careful to keep it off the ship. Start placing pieces of tissue on the glue, using your tools to tuck it down on the base until it sticks in place. Don't worry if it overhangs the edge, you can trim it up with a sharp knife once the glue dries.
Once the tissue has been stuck in place, put a thick layer of glue on top of it. This will quickly soak the tissue through and break up the fibers in it.
Using a sculpting tool of some sort, push the tissue and glue into a wake shape drawing off from the edges of the ship. Start at the back of the ship, and push the tissue toward the back to raise up the waves. If you keep the edge of the tool at the bottom of the wave, the top of the wave should angle forward like it's crashing over.
At the bow of the ship, push the "water" up against the hull so it is rolling off and forward, and extend the wave off the edge of the base to the side. Then do the same for the other side of the ship.
Give it a few hours to dry, then carefully remove the ship from the base. If you got too much glue on the ship and wait too long to remove it, part of the sculpted water may come up from the base. Just add a bit of glue under the part that came loose and hold the water in place as you remove the ship.
Once it has dried thoroughly, I'll paint it. I'll show how that goes in my next post.
So that's where I'm at. I've got some plans for the future, and Jim and I are scheming on a Bayou Wars game that may require me to break out my Hirst Arts block molds in addition to painting up some more figures that have been waiting on the sidelines. And the Martians should see some more time on the workbench soon as well.