Quality Order by Ruukas/Zjaelden
Takes creative tabs to new heights! This version was backporter from 1.10.2 so some features might be missing-
Quantum Coins by Mint
Extremely customizable physical currency mod. Aimed more at server economies then SP use.
Quarry Craft by bor295
a mod initially made to provid some purple and gold decorationblocks grown out to be a quarrymod. weird huh?