(written from a Production point of view)
Giddings, through prior associations with "Mojo" Lebowitz, has made a number of contributions to the Star Trek print franchise. Around the turn of the millennium, Giddings was commissioned by Lebowitz to construct CGI models of starship designs that either did not previously exist or were intended to replace those production CGI models deemed unsuitable for print publication. Lebowitz needed these models for illustrations in his planned (but ultimately canceled) Unseen Frontier reference book project in 2000. 
Having previously drawn up a list of ships that he wanted to tackle, Lebowitz had Giddings start on these as he himself was still working on Star Trek: Voyager at Foundation Imaging at the time. Giddings had already completed models of the Centaur-type and the Excelsior-class, among others, when the project fell through.  Despite the project falling through, his work earned him an accolade of praise from his consignor, "A few years back, when I was working on a Star Trek book for Simon & Schuster, I hired Ed to help out with modeling chores. The CGI Excelsior model we had used on DS9 wasn't very detailed, so I asked Ed to create a new one. Armed with a ton of reference photos of the physical model, he went to work, sending me daily progress images, upon which I would scribble notes and make suggestions. After a few weeks, Ed put the finishing touches on what is easily the best CG model of the Excelsior to date, matching the studio model rivet by rivet."  Nevertheless, much of his work was eventually featured in later officially licensed Star Trek print publications including the Star Trek Fact Files, Star Trek: The Magazine, the Star Trek: Ships of the Line calendars, and their book derivatives.
Praised by Lebowitz for their high level of detail, his Centaur and Excelsior models were deemed by Eaglemoss Collections' project manager Ben Robinson as ideal for use in the Star Trek: The Official Starships Collection, as had been his 2010 spin-off build of the Excelsior-class refit USS Enterprise-B, built for Robert Bonchune's USS Enterprise Owners' Workshop Manual.
Giddings also produced a model of a Bird-of-Prey's bridge for the Klingon Bird of Prey Owners' Workshop Manual and co-produced a model of the alternate reality's USS Enterprise for Roddenberry.com. He created models for an episode of the fan-made Star Trek: Hidden Frontier film in 2000 and created a Martian canyon for Red Faction: Origins, a science fiction television production made by Syfy in 2011. 
- Star Trek: The Unseen Frontier Declassified Images from the History of the Federation, 2000 – Co-Illustrator, Digital Modeler (canceled)
- Star Trek Fact Files, no. 297, 2002 – Co-Illustrator, Digital Modeler (uncredited)
- Star Trek Fact Files, no. 298, 2002 – Co-Illustrator, Digital Modeler (uncredited)
- Star Trek: The Magazine Volume 3, Issue 6, 2002 – Co-Illustrator, Digital Modeler (uncredited)
- Star Trek: The Magazine Volume 3, Issue 8, p. 34, 2002 – Co-Illustrator, Digital Modeler (uncredited)
- USS Enterprise Owners' Workshop Manual, 2010 – Co-Illustrator, Digital Modeler (uncredited)
- Klingon Bird of Prey Owners' Workshop Manual, 2012 – Co-Illustrator, Digital Modeler (uncredited, but acknowledged)
- Star Trek: The Official Starships Collection (as identified in social media, but uncredited)