Damn. Okay. No enchanted napkins, then- enchanted bar, separate enchantment for making the translation permanent when you leave. That could have been the loophole in the "nonmagical items only" requirement.

...No, wait.

"So, you can only order nonmagical things, but... you said you could sell her Pokéballs, right? Those things are as good as magic in my world, but presumably in hers they're ordinary technology. Is 'nonmagical' relative to the magic saturation level of the customer's universe, or something?"