Margarita.... cupcakes? need some help

So I have a pregnant friend who is very much missing being able to drink margarita's.... There has been a request to make sure to have virgin ones at her baby shower in a few months. :) That should be easy enough to do.

We are having a get together on Sunday though and I've been thinking of maybe making margarita cupcakes... My thought was just to substitute margarita mix for water and make a margarita cream cheese frosting.....

Seems like that won't be much different then the lime cupcakes I made a few months ago though....

Any suggestions on how to make them taste more like a margarita without actually using any alcohol in them??