Biggest. Geeks. Ever.
And we love them here at the Allspark. Click "Read More" below to see some of the most impressive Cosplay (that's a Japanese-originated term for "costume play") Transformers costumes ever constructed, featuring the Constructicons, Hot Rod, Blurr and Blaster, from the Japan Expo 2004. Thanks to Obsequiosity for the link.
Seriously. These guys make us look like amateurs.