Wedding cracker favours

Hello! I've been pondering the idea of favours. And I have been leaning toward diy-ing christmas crackers for our guests, the ones you snap open and it has trinkets inside. It seems like something a little interactive and cozy which is just what I am looking for.
I've been trying to come up with cute and not too expensive filler ideas, but I'm curious if anyone has seen this done before, or what sort of fillers would be practical for the guest.