Hello,
I'm a sound designer.
I can make Sound/Foley FX design for your ICO videos and mix/master them together with your Voice Over and background music. Also, I can make audio logo design.
I can help you to make your ICO promoting videos more 'organic' and alive by prioritizing your satisfaction in return for a specific amount of ETH or BTC.
Please PM me if you are interested. I can send you over some examples from my previous works.