The Thor-Delta rockets launched a number of early american satellites, including Explore 17, Syncom 1 and 2, Telstar 2, and Tiros 7 and 8. The Thor-Delta B had eight sucessful launches and one failure.
On my original build I used part 33176 (Finial Ball) as the payload shroud. Searching the secondary market I found this to be a very rare item in white. The ball and stud used in the build instructions below (and which are a fraction of the cost of the Finial Ball) gives an almost identicle build.