I've checked the forums with little to no luck. Does anyone have any unique/interesting droid creation/modification rules?

What are you looking for that is not covered in the rules as written?

I'm guessing this has to do with your droid specialist player you discuss here, Chxchmate?

I think the rules for modifying Droid characters are pretty well codified (at least as far as this game codifies anything), but for creating new droids for NPCs intended to be controlled by a PC character, there's basically no information.

Chxckmate, I think it may be helpful if you could, if possible, be very specific about what you're trying to create.

D6 Star Wars had a pretty detailed supplement on how to improve NPC droids, and since WEG released all that content into the public domain, you can get it for free here: http://d6holocron.com/downloads/books/WEG40116.pdf

The skill system is different, of course, but I think you could adapt it pretty easily for use with NPC droids. If you've got droid PCs, though, you might want to make sure ahead of time that the players are ok using separate rules for PC and NPC droid advancement.

Cynabar's Droid Guide is definitely what I was looking for. This works Perfectly!

It even has prices and various types of droids to choose from.

I remade various of FFG's droids and the prices are not to far off.

Creation seems like you could just use the PC xp basis and fudge it price wise. Mods are included, they're called cybernetics.