In lieu of more traditional wedding (or other party) favors, host a candy bar! Guests can receive little paper bags or more decorative pouches with their names and seating assignments on them which can double as candy sacks for later in the evening.
Wedding favor stickers - add your special treat. Set of twenty 2 inch round stickers his & 10 hers). These favor stickers work great to seal my favor bags or on small Jam jars. They are light on the tacky so you can remove and re-seal if needed.