I personally use the Plastic Frosted bags from Nashville wraps. Would an option be to buy the clear frosted and use colorful tissue paper? The tissue comes in the Rainbow Spots. It would be a change, however, not so dramatic. I would worry that downsizing to the t-shirt sack would not be a positive image move. Maybe another move could be a kraft bag, hand stamped with a rainbow spots. I think I have seen circles and spots that you could use. It's a lot of stamping, unless you just do one on a bag. Than again, that's just my $.02.