Talofa(hello), welcome to "the glass knife": a casual, d.i.y., how to make skateable concrete obstacles. We will cover renegade, backyard and skate park.  The glass knife is trying to have fun because that's what skateboarding is really about so we will not be to snobbish about things. We will show you pro techniques as well as ghetto fabulous techniques and maybe something in between. I am new to the computer world as far as projecting media and being savvy about it, so this may start a little slow. (above; Amit and Sage Bolyard in coastal Israel)