adding to party facility

I was thinking about adding this option to my childrens party facility. The kids would come in pick out a shirt and a design and then a employee would heat press the design to the shirt. The kids would then stay for pizza and cake and all would go home with a party favor (the shirt they designed). There is so much I do not know about this business. I like the idea of the swing away automatic press who has the easiest usse machine. Does anyone have any recommendations on who has the longest lasting heat press transfers. Any recommendations on a Insurance Company. I want to supply shirts (all colors, sizes and styles) along with about 200 different transfers. I would also like for the kids to spell out things like ther name with the transfers then one of my employees can heat press it down.