I have a set of stimuli that I want my participants to be exposed to, but I want a single stimulus to be randomly chosen from the set for every participant. I do not want every participant to be exposed to the entire set.

This stimulus would be placed between several surveys.

Is it possible to do this? If so, how?

I tried searching Google for a solution, but couldn't find one.

Any help would be appreciated!

I'm not absuloteöy sure what you are up to and what "placed between surveys" means, but have a look at this randomization example at www.limesurvey-consulting.com:

How to randomly show 1 of X questions at a Limesurvey survey