[thewriteguy]

3 more recommended links I forgot to add:

This guy restores old toys, many of which are vintage Star Wars. He created a custom interior for the vintage AT-AT, designing original decals for the inside. In another video, he shows how to bend clear plastic sheets to make a cockpit window for the Imperial Shuttle. Both of these techniques can apply also if you're designing your own original toy. (He also makes repro decal sheets and generously gives them away.)

Of course you should bookmark the Rebelscum photo archive of Star Wars toy vehicles. I found this a great resource for studying the photos in order to be inspired by the "look and feel" of the way Kenner and Hasbro designed things.

Rebelscum.com: Hasbro Star Wars Photo Archive
Rebelscum.com: Kenner Vintage Star Wars Photo Archive

GI Joe toys are no longer popular, unfortunately. But many of the vehicles Hasbro made are amazing and should be closely studied if you are aspiring to design your own vehicles for 3.75" figures. Hasbro made such huge vehicles for the Joe figures. Check out the Defiant space shuttle vehicle playset -- that thing is just nuts!

3 3/4" Vehicles
YOJOE.COM | Defiant