Okay, time to throw the box away... first, if you REALLY wanted to, you could probably make a gun in three or four pieces to be assembled by the client. But you have so much more that you can do besides guns. And letter openers are usually 1:6 or 1:4 scale, not 1:3.
Elves need elvish jewelry, headpieces, belt buckles, bracelets etc. Unlike metal items, the nylon of WSF and WSFP won't damage a resin doll. This is a BIG selling point! People have storylines for their dolls and need props for those story lines. A finial for a walking staff, small jars and bowls for an alchemist, magical items, boot soles and heels for high heeled shoes.
Then there's Vampires, they need fancy 'goulish' jewelry and other accessories. There's Wings (generally held on with magnets under the clothes.), Tails, Ears.
Dishes, pots and pans, plates and dinnerware, mugs, candle holders, Genie bottles,
Then there's the humans: jewelry, knives, dinnerware, it's endless.