I attended the Chicago expo. It was not a child's artwork but rather looked like animated characters. It was kind of cartoon like with multi color print.
Yvonne-
In what city did you attend the expo? Was the "custom drawing" kids artwork? Maybe we could help you narrow down the vendors with that information.
2-3 yrs. ago at a PTO conference I picked up a free shirt sample and I am looking for that company. The shirt's design was a custom drawing of different teachers and activities of the school. Very cute. Does anyone know of this company?