Co2 rocket collection

Model originally uploaded to Thingiverse at https://www.thingiverse.com/thing:6105704.

co2 rockets for use with 12g co2 cartridge and 2" PVC pipe. I made a collection of rockets I'm making instead of several separate pages. I'll be adding to this as I fool around with some designs. I'm no rocket scientist so these might not do much if anything.