Fake jello-shots help

A friend and I are organising a bachelorette this weekend. My friend is currently 8 weeks pregnant and not ready lot let the other girls know. If she doesn't drink it will be pretty obvious as she normally drinks and being one of the bridesmaids she can't just cancel. We have a few ideas for decoy drinks and one of them is making jello-shots and having a specific colour be non-alcoholic. Is there any way of making it taste like it had alcohol? And any other ideas for decoy drinks also welcome! Thanks!!!