A proper steampunk style pistol would do well for this time traveling pirate. I found myself inspired by this Nerf gun transformation on Crafster.com.
So I went out to the dollar store and bought a plastic water gun that was similar in style to these . . .
I took off the water tank and filled in the hole with some air dry clay.
After the application of numerous coats of metallic gold, silver and bronze paint, and super gluing some gears I found at the arts and crafts store . . .