Ecommerce Plugin that allows text field for customization?

Ok, I have been looking through the various wordpress plugins that allow dropdown menus for product variations I.e. chose your Brand and Size or Color. But I cant find any that allow text fields. For example a custom shirt. I want to allow people to chose their size/color then type in a text field what they want it to say. Does anybody know of a theme or plugin that supports this? Other then Cart66.

Thanks!