There seems to be a growing number of hobbyists out there who are scratch-building the model rockets of yesteryear. Many of the instructions from the original commercial models are available online (copyright champions, look away) and some folks sell nosecones, decal sheets, and other parts for these models. One popular theme is the sci-fi movie and TV rocketships, such as those from Star Trek, Star Wars, and Battlestar Galactica.
Hobby rocket couple Verna and Randy scratch-built a fleet of Colonial Vipers from Battlestar Galactica, based on the old Estes kit. A friend of theirs, Jim Neubauer, made the decidedly more imposing 1/15th scale Viper (seen in the last photo).