You can print the PDFs out here over at Toy-A-Day. There's the Storm Trooper, Yoda, Boba Fett, Darth Vader, C-3PO and R2D2.
There's also some cute toys over at Cubeecraft. There's R2D2, a Stormtrooper and Darth Vader.
Also check out CyberDrone's templates over on DeviantArt. Clicking this link will take you to printouts of several types of TIE Fighter, most of the characters, a Jawa Sandcrawler, most of the R2 droids, several Clone Troopers, several Stormtroopers and a Jawa. Seriously epic stuff over there!
If you're feeling even more adventurous, I DOUBLE DARE YOU to try these ones! Diego has several of the model ships ready to print and fold [I'm scared!], a battledroid and a battlepod. I swear if someone makes this you will get +7 Internet Points.
This little Japanese site has several of the ships and droids also. Amazing. Good luck!
Also, wanna give Darth Maul a go?
Edit: Apaprently the Japanese site link doesn't work -_- I don't understand why all these cool places have suddenly disappeared in the last two weeks. Never fear! I shall find it!