Howdy John,
Card, paper, wood......close enough lol. I see you discovered the art of "Hako". Some more examples of this type model can be found here:
http://www.albionrising.com/models_2.htm The Hako models are at the bottom of the page. (tip: you can also find nice replicas of the new and old style Star trek Phasers here in model form as a free download as well as a nice Firetruck).
Anyway, Good work John!
Have a good day all
Greg