Leave to dry and then turn inside out. On a still cool morning pour about ten mls of meths onto the cottonwool being careful not to get it onto the tissue, it's quite a trick. Hold the balloon upright and ignite the meths. Hold the balloon lightly by the top and after a few minutes you will feel it 'pull'. Gently let it go and hopefully it will fly.
Kids get an adult to help.
Sonny working on the last of the detail of his balloon. He launched his balloon on a frosty morning down at Donnelly Park. It went very, very well and flew like a dream.