Colonial Viper nose cone for kit est#1310. See Jim Z site for plans. Trust me, this cone is much better then the original blow-molded version. My representation of it is closer to the fictional design.
The technique for anchoring the nose weight as per the kit instructions can me modified to be both the nose weight anchor and shock chord loop in a single plug, thus avoiding attachment holes as you would normally see in my designs, adhering to a strategy of design simplicity.