Of the three shirts, the cheapest if ever these shirts will be printed is the 'myspace shirt' because it is monochromatic. The 'friendster' and 'facebook' shirts are also cheap because the design has less colors. I think someone requested these shirts, I can't remember who... LOL... After these design, I will probably design unique shirts like this one [link]. No more acknowledgement or credits for logos, and no more copyright issues.
credits: facebook logo, friendster logo, and myspace logo and some of their taglines.
