Not to mention the number of three year olds that refuse to enter a room with a jet engine affixed to the walls. Maybe there's a market there? Just as The Wig

Not to mention the number of three year olds that refuse to enter a room with a jet engine affixed to the walls. Maybe there's a market there? Just as The Wiggles showed that there is money in adapting adult music for kids, maybe there is money to be made by taking children into account in the design of public facilities? Venues that are frequented by families (shopping centres, child care centres, schools, ...) might be prepared to pay for a line of appliances that don't make life unpleasant for their customers?