Em.. VIX futures? Loads of long option positions (CALLs and PUTs)? Long on volatility isn't such a difficult bet.
To introduce a VIX etf right now would perfectly mark the maximum peak in volatility. That's when new contracts come about. An etf for CDS's would fall in the same category too.
There was talk of a VIX etf not too long ago. Would be interesting. Have the underlying ETF track the exact price of the VIX, that would one fun ETF.