What about sponsoring a race car with Bitcoin logo like Dogecoin in link below?
http://www.youtube.com/watch?v=lDkc7WIFF2A
http://www.youtube.com/watch?v=lDkc7WIFF2A
Since yesterday (7/24) Bitcoin community is sponsoring race car.
Link to sponsoring website: https://bitcoin23.crowdtilt.com/bitcoin23-nascar
Link to CoinDesk article: http://www.coindesk.com/crowdfunding-campaign-aims-promote-bitcoin-nascar