A summary of all the logos created with various formats lives here: oshwlogo.com
I support the Open Source Hardware Definition v1.0
Show your support for Open Hardware by applying the Open Hardware Definition to your work/project/website. Just copy and paste the code below into your webpage.
<p style=”text-align: center;”><a href=”http://freedomdefined.org/OSHW”><img title=”oshwv1″ src=”http://2011.oshw.org/files/2011/08/oshw-logo-100-px.png” alt=”” width=”100″/></a>I support the <a href=”http://freedomdefined.org/OSHW”>Open Source Hardware Definition v1.0</a></p>
Note: The OSHW Logo v1.0 was submitted by an OSHW enthusiast as part of the logo competition and has undergone a public selection/vote process. More details here