MetroDubs on "[Plugin: WooCommerce - excelling eCommerce] Custom text box"

http://www.dubsalongtherockies.com/wp

I would like to add a text box that allows the customer to add a 5k character entry that can be used to populate a custom dash plaque via an export command.

How do i add a custom text box to the woocommerce interface; either at the check out or prior.

http://wordpress.org/extend/plugins/woocommerce/