For the nose weight, I started with 3-1/2 ounces of 10-24 nuts. Put them in the nose cone and lit it up with a flashlight so I could mark the level of the nuts. Drilled 5/32" holes through the tip and inserted pieces of bamboo skewer through perpendicular to each other. This will keep the weight from dislodging after the casting epoxy sets. I cut a 2-1/2" hole in a piece of 1/8" Masonite to hold the nose cone suspended upside down.
That dark spot on the wall is actually dust on the sensor in my digital camera. It's a point n shoot, so I can't clean it. Bummer.