Is there an easy way to embed or include a user controlled font re-sizer into a limesurvey template? Something like "AAA" Has anyone accomplished this already and can give me some advice or tips? I'm sure there is some java script things that can be done, but I am looking for the path of least resistance while maintaining the look of the original template.

I have never seen this before and I'm not sure if it can be implemented easily because of the different styles that are applied to different survey page elements.
If you are able to find a nice solution please report back.

Do you think it could be done on a by template basis? I typically just use a modified version of limespired and am wondering if I can just get it to work for that single template I would be okay.

You will need to use JavaScript/jQuery to do this dynamically. There are lots of plugins out there - here's a starting point - plugins.jquery.com/plugin-tags/font-resize (or just google "jquery font resize").