>I have a few really good hardware ideas, but I don't believe I could ever market them fast enough and far enough to make it worth spending the R&D to make them happen.
Then make a nice blog post, translate it to Chinese (hell, I'll pay a professional translator for you) and post it on the internet so that someone in Shenzen can try it.
Just post your ideas to crowdsource websites and wait for the aliexpress clone to appear, zero r&d costs, zero dev and manufacturing/qa! That said, Taobao and Ali are so full of bizarre products (transparent rubber domes to be able to type with 5cm long nail extensions), it will be a challenge to stand out