Recently I needed a jumper to flash the firmware of my OCZ Vertex SSD (which by the way is amazing and I highly recommend).
However, I didn't have one handy and instead used a piece of tinfoil. See the thing about jumpers is that they're just a piece of metal that bridges two pins. Data isn't traveling across the jumper, so it doesn't matter what kind of metal you use as long as it's conductive.
So I ripped a tiny piece of tinfoil, mushed it into a tiny little roll, and then shoved it onto the pins. And it worked! If you try this, make sure the tinfoil isn't touching any other pins or other metal parts of your drive or PC.