A small Create addon I'm making for my modpack, Create+.
Currently includes the following:
Inverted Gearshift and Clutch: Right-clicking a gearshift or clutch with a redstone torch turns them into their inverted versions. (When inverted, no power means they will act like their powered, non-inverted counterparts, and when they are powered by redstone, they act like a shaft, just like their unpowered, non-inverted counterparts.)
Brass Gearbox: has sides you can cover by right-clicking with brass casing in your hand. Covering sides prevents rotation for transferring to and from that side.
Ponders for said blocks
Brass Basin and Brass Chain Drive: same as originals but brass palette