If you really love working with HTML5 the this is then time to show some support for HTML5. Use the HTML5 badge builder to create a badge and use it on your blog/website to show your support. The badge builder allows you to customize the badge with tech you use with HTML5. You can see the badge I customized with the tech under badge section on the right.
The w3.org site for HTML5 has to offer more than just a badge. You can download HTML5 Logos, stickers, T-shirts, jacket, grey hoodie and beanie to show your love or I must say more precisely show off your HTML5 love. The HTML5 T-shirts are awesome and worth buying if you want to show off. Take a look at HTML5 Logo T-Shirts and buy one if you really like HTML5 and yes if you want to show off and make other jealous.