Here is my video on how to do this is you don't wanna read it.
Step 1: Step 1: Respect the Chemicals
CAREFUL: If you are not somewhat skilled in chemistry I recommend you NOT attempt this. It is quite toxic, and I don't recommend anyone try it. This is downright nasty stuff, I can't say it enough, just watch the video for fun!
Step 2: Step 2: Seriously, Respect Them.
Step 3: Okay, Good. First What You Need!
Lead Nitrate (also nasty)
Step 4: Mix the Reagents
Once mixed, it looks like cheese.
Step 5: Heat the Solution to 100C
It should go clear, but if you see this, it is not a saturated solution, and you should increase the heat, OR add more water.
Step 6: While It Cools, It Does a Very, Cool 'golden Rain' Effect
Step 7: Filter It, and Let It Dry for 2ish Days
Filter with coffee filters, using gravity, or attempt a vacuum filtration with an extremely fine frit, or a buchner funnel.
Step 8: Store This Pretty Stuff!
Don't forget to label it, and clean up with LOTS of baking soda.