Penbbs is a Chinese fountain pen forum that has their own line of inks. They produce them on a "season" basis and distribute them to taobao.com stores, where you can purchase them in 60 mL bottles or 5mL samples (I'm sure some of them do international shipping)
I purchased a 5ml sample of 章丹, a orange ink that means an ancient person who was apt at dancing. The ink is pretty bright on the eyes but shades very well, ranging from a brownish-red to a light orangish-yellow. The scan I did was using a software called Cam Scanner on my phone that actually did a better job of portraying the color than our family's printer scanner, but the ink in the scan looks a lot more red than it is in real life. It isn't waterproof and flows decently. I like this color, but it is a little more red than a standard orange. I will probably use this for journaling.