Cool idea, and it should work just fine in the magazine itself. If you have an HTML-based element that allows for that interactivity, you should be able to just embed it as with any other HTML element. You can have surveys, questionnaires, etc and have them all live and interactive. Here's the tutorial for adding HTML to a page in the issue:
If you've tried that and it's not working, please send on the HTML you're trying to embed and we can take a look.