Line work is a term used to describe making balloons live when kids are "lined" up. These designs tend to be simpler because they prioritize speed over "wow factor" So far, I've only done line work for very large events of over 200 kids, so the designs are simpler to let kids go have fun as fast as possible!
I am now offering line work entertainment for $65 an hour. I show up in my branded apron, with a table cloth and all my ballooning supplies. It is up to the event coordinator to provide a table and a tent for the duration of the event (including set up and take down of the tent, assuming the event is outside), If there are fewer kids around, I have time to make cooler things, if there are lots of kids, I have to make it pretty fast to make sure everyone gets a balloon. If swords are requested I ask the kids to promise they won't hit people with them (I can forgo this at parent request). As a safety concern, I do not hand out balloons to children under the age of 3 without a parent present as popped balloons can pose a choking hazard and I don't want anyways child to be in harms way.