I wondered: Since Lightsabers are made out off light, and all other laser based weapons. Can't it be reflected by a mirror or something reflective?
No, it shouldn't be possible. The problem is that lightsabers aren't actually lasers (if they were, they wouldn't stop after 1-2m length, they'd go on until they hit something). They're some form of magnetic plasma bottle. The defences against them are magnetic or heat resistance (shields, dense metals, etc.), not reflection.
A surface which reflected charged particles would help, but the heat transfer would probably still melt it rapidly. (Lightsabers don't have much trouble with blast doors, for example, even shiny ones.)
(Even against laser weaponry, a mirror would be of limited value. The surface polish helps at first, but a sufficiently energetic pulsed laser will rapidly blow that shiny surface apart.)