I think competition two should be about the most DIY laser. Not the biggest and baddest, just the one with the most work put into it and less premade parts bought.
Points awarded for:
1. How much of this was created by you (main factor)
2. Amount of work put into it
2. Uniqueness
It has to be unique. Making your own heatsink for a C6 isn't going to win this, even though it was diy.
Having good tools doesn't mean your DIY is better either. If you used ingenuity and made something without the proper tools that just adds to the DIY nature and you get some bonus points.
Its viability as a laser isn't all to important. Of course it has to actually be a laser, but if someone for instance built their own hene doing all the glasswork, winding their own HV transformer, building the driver circuit, etc. and it was a huge system that hardly worked they should win even though another persons laser "works better" because it is >3W and handheld.
Also I'd give a longer timeframe for people to get entries in for this contest.