Not a really a treat idea, but a way of serving it.........buy those cute Easter cupcake tins, put some basket grass in them and then lay the treat inside of the cupcake tin, it is a cute presentation. It would work with trail mix, pretzels, candy, etc.
Right now, they are selling Easter marshmallows (pastel shapes of chicks and rabbits) and I think they have a recipe on the bag for a trail mix using the marshmallows, called Spring Mix or something like that, I made it last year for my son's Kindergarten class. I brought small Ziploc bags along in case the kids wanted to take it home........sometimes there are too many snacks and they can't eat it all. Have fun!!