One thing I’d really like to see is a set of all the various shuttles we’ve seen in all the Star Trek series. From the TOS shuttlecraft (with that classic butter-dish design!) to Next Generation, to the various Voyager shuttles, and finally the “Enterprise” shuttlepod. I’d love to see them all in one box, (all to scale, of course) and a size that might average 3 to 5 inches long.
I think there’d be a market for it. Anyone agree?
More specifically, here’s Resin Ranger’s page at Fed, with the TOS shuttle and the V’ger speedboat:
http://www.federationmodels.com/model_kits/resin_ranger/default.htm
And here’s the Alliance Models page with ther runabout:
http://www.federationmodels.com/model_kits/alliance/default.htm
And the Fedration Models page with the shuttlepod and workbee:
http://www.federationmodels.com/model_kits/federation_models/default.htm
And the Dual Bee from ACEng:
http://www.federationmodels.com/model_kits/aceng/default.htm
For a few moments in time, DLM sold a beautiful 1/35 resin kit of the Type 7 shuttle from TNG’s first season, but I’m guessing it’s OOP since it’s not on his site any more.
Go to it! 
I’ve always wanted to build the aqua shuttle from the animated series.