I went to Flite Fest this year and saw a lot or really cool scratch builds. One of my favorites was a 200% Bloody Wonder. It looked so awesome and looked like it flew amazing. When I got back from Flite Fest, I decided to make one. It only took 5 shees of foam and took about 5 hours to build. I had a old aerosky Sbach that I didn't like too much, so I gutted it and put all the electronics on the giant Bloody Wonder. I had an extra servo, so I made a rudder to put on the wonder. when it was done, I put some tape on the bottom and flew it. It is now my favorite plane to fly. It can fly like a trainer or a hardcore 3d plane. The rudder doesn't have as much authority as I thought, but it could do snap rolls and other fun things. The wing spar is all foam, but you need to put in 2 spars if you are going to fly 3d.
After I got really comfortable with it, I tryed to do a glider tow with my little brother's glider. It didn't work very well, but it was still really fun!
A few weeks later, the president of a local rc club asked me to do a demo with one of my home made planes at our local harvest fest. Of course I chose to fly my huge bloody wonder. It was so much fun!
Electronics: any motor that can swing a 15x6 prop on a 4 cell. 60-70 amp esc. 17 gram servos. 4s 2200-3000