Multiple Design Options on the same apparel style

Instead of opening two stores i would like to be able to offer an organization one store for two different sports. I have one customer who needed both a baseball and softball store each store having the same items one has a softball print and the other baseball. If we were able to show multiple print design options for the same product they could pick the one they need.

Combine Youth and Adult Apparel in 1 Product

Would like the ability to change the size and colors for stock items when needed. Some options call for a youth and adult size, currently we either have to enter this as a fully custom item. Would be great to be able add youth sizes to a stock adult size item when needed