The amazing coke bottle that went where few bottles have been before... for Brad and anyone else who wants to build one. Get a rubber cork with a hole in the middle, stick a bike valve through. Drill a hole in the lid. Apply vaseline (petroleum jelly) to cork, insert in bottle, screw lid on, pump up with bicycle pump, slowly unscrew bottle from lid while firmly holding lid. Usually easier to attach bike pump before putting cork in place. I recommend leather gloves with pressures over 60PSI and definitely face shield for pressures over 100. Hang on really tight. Filling with water makes it go lots further and also wets your crutch. Yellow racing band is recommended.