1/2" Cavity Star pump with a hole drilled through. I do not have the pin for it, a tooth pick or a piece of a bamboo skewer will work well.
Cavity stars are traditionally pumped from a charcoal streamer comp and dried. The cavity is filled with a bright, contrasting color. The dried comet is pasted in similar to a crosette. The effect is a long duration color changing comet, good for candles and cylinder shells.
Also up for auction is a 1/4" star pump. This is good for testing small amounts of stars for a small mine or rocket heading. If you are patient, you could certainly pump hundreds of microstars for a shell.
Free shipping to the lower 48 US.
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Edited by nater, 29 September 2014 - 09:18 PM.