http://cdn.makezine.com/make/AlexRider_Strombreaker_6_15.pdf Alex Rider's High Tensile Yo-Yo: contest preview and book giveaway! http://blog.makezine.com/archive/2009/10/alex_rider_high_tensile_yo-yo.html 2009-10-21 http://makezine.com/images/logos/rss_icon.jpg