I like to send the kids home for Christmas holidays laden down with decorations for their homes, gifts for those they love, Christmas cookies (that they made) and magic reindeer food.
I put in the usual cheap as I could find oats; I added stale rice crispies (left over from making rice crispie squares) and some bird seed (left over from going for a walk to feed the birds). I also threw in some cupcake decorating sprinkles. I know that they are expensive and that glitter is cheaper and adds more bling -- but the glitter can really harm the birds that eat the food. Please please please, go for the sprinkles.
During play time I put out the reindeer food. I said that I had a special source - close to the North Pole - I was VERY lucky to get this reindeer food. I also put out a cup measure, snack size baggies, and some cute little labels (there are LOTS online) with a stapler.