Ive tweeted @bitcoin for permission to use their bitcoin logo on a t-shirt. Waiting on a reply. If perhaps it was missed or something. Is there any other way to request permission from bitcoin.org?
I think you may do it, since it can be like an advertisement for bitcoin to the social media, but I think wait for them to reply on you, or do some innovation to the design so that you would not plagiarized the whole design, many people are using it now, you are too honest to get their approval first for you own advantage, kudos to you bro! I hope they will let you to use that logo.