Dynamicly Remove Admin Menu Items

Hi, I’m modding a blog to be used as part of a kids media-training course. I’ve used add_theme_page() to create an additional admin page with that allows the kids to change stylesheet properties (with color pickers etc.) and upload new header images without using the “Theme Editor”.

Is there a way I can remove the “Theme Editor” & “Widgets” options without editing the admin source? ie. a function equivilent to “remove_theme_page()” – The blogs will be auto-updated and I don’t want the options to suddenly re-appear.

Thanks.