Artist and designer Arnold Martin produces templates for a variety of fanciful airship models (not functioning, sadly) that you can print out on a home 3D printer such as the MakerBot Replicator 2 (now only $2199). I didn't know I needed one of these, but I do now. Hopefully the prices will come down in 4-5 years, just in time for my kids to make their own Archaeopop-themed toys.
A trireme, BTW, is an ancient greek warship. I love this design but I must quibble slightly: to be a trireme there have to be three banks of oars! (tres = 3, remi = oars.) Otherwise it's just a monoreme. Here's an awesome bonus video of a full-size trireme reconstruction at sea, circa 1991:
Look at 'em sweat!
Hat tip to the inimitable Boing Boing.