Yes, too much "Mortal Kombat" is perjudicial for the health :-)
The reused materials:
For the upper body:
- Half Barbie
- Various plasctic pieces (acoholometer mouth pieces, fax machine gears, etc)
- Cordless phone base
- Plastic case
- Plastic pieces of your choice
- plastic compasses
- R/C from a toy car
- 2 small electric screwdrivers
- 2 plastic wheels
Tools: the usual. Dremel, screwdrivers, pliers and soldering iron.
Our fellow maker Rpantaleo have a great CAD image of the basic mechanics of a six legged robot:
I used a R/C from an old toy vehicle. You will need the kind of toy R/C how moves like a battle tank (you know: two motors, one beside the other. For turning, one of the motors spins faster than the other). For more torque, I replaced the toy motors for small electric screwdrivers.