His father, Doug Dahl, measured the balloons to make sure each was at least 20 centimeters, the minimum diameter, and his mother, Wendy Dahl, kept the tally.
At one point he asked, "Does this count as practicing my trumpet?" His mother replied, "Only if you can play that with your nose."
Andrew's first attempt -- 184 balloons in February -- was rejected because his father tied the balloons. This time he tied them off himself.