You just need to do it alot,and really fill your lungs up with air, plus stretching the balloon a bit at first helps, as does warming them up a bit.
Actually some colours are easier to blow up than others.
(Actually some colours are easier to blow up than others.
bovine I'm so old, even my old is old,
Wed 8 Jan 2003, 16:36,
archived)
it's a noble professioni'd like to see juggling and baloons at the same time :)
( mnb098mnb used to be here,
Wed 8 Jan 2003, 16:53,
archived)