To start making solar panels from broken solar cells you need a few things.
First, get some solar cells (if you don't have some kicking around already).
Solar Cell Grab Bag
Electronics goldmine solar cells
That's just a few examples of where you can get solar cells, but it gives you a start.
1. 15-25 watt soldering iron
2. Light duty 60/40 electronics rosin core solder (radio shack $5.00 for a roll). You can use a silver solder, but I think it's too expensive, and the difference in resistance is minimal. So I just use a regular old electronics solder.
4. Pencil eraser
5. Solar tabbing pre-tinned ribbing (Ebay has 100 feet for like $20 bucks)
6. A good flat sturdy working surface (I use a piece of glass, but whatever you have will do)