Can any of you help me out.... I'm doing a project with my kids on bottle rockets and need to find a couple of bored rubber bungs that will fit into (and seal) a standard 2 LTR drinks bottle (like any of the ones sold filled with fizzy pop)
I can't find anywhere locally to test this out and really need to find out which size is best so that i can order them from the internet... can any of you guys advise me... or even better, try this out and tell me the size I need?
What would be extra useful is if you can also give me a tip as to where i can order them from..?
I hope ypu can help as we have a couple of great designed rockets just waiting to be launched...!!!
Thanks,
Mark Taylor