1.
Obtain a fresh, sharpened pencil or chopstick.

3.
Thread through each hole a length of cheerful yarn, along which you've strung a small counterweight.

4.
A washer, your car keys, whatever. Anything with weight, and a hole wide enough for string.

I'm using my pager, which hasn't gone off in eight months. I think it needs a new battery.

Wrap white paper around each end. Use black electrical tape to seal two cans together in a continuous tube.

5.
Stay focused!

After many hours in the magic lab architecting one wand, you probably won't be in the mood to produce a second one. But therein lies the whole point, I guess.