Soda Sprinkler - using Mentos

thingiverse

Fill tube with mentos, place a pin in the little hole to hold them in.. screw on to a bottle (2L most likely preferred for maximum spray). Then watch the soda spray! I barbed the end of the tubes to allow hoses to be attached. The outer diameter of the barb is tapered from 0.40" to 0.50". This should allow for a 1/2" tube to be put on the end. Might not be needed, but could add a little fun to this thing. Enjoy!