Any ideas for simple cookie recipes that can be prepared with few ingredients?

I found out very last minute that a friend is having a housewarming/birthday party this evening. I figured it’d be nice to get her a serving dish for her new house and fill it with some homemade cookies, however I am very, very limited in ingredients.

I have:
-Butter
-White granulated sugar
-Brown sugar
-Ground cinnamon
-Whole wheat flour
-Baking powder
-Eggs
-Milk
-Salt
-Vanilla
-M&M’s
-Chopped walnuts

I was thinking Snickerdoodles but, unfortunately, I do not have any cream of tartar and most recipes call for that.

Any ideas?

How much should I charge for holiday cupcakes & cookies?

I make holiday cupcakes & cookies that look like special characters or things. Like santa claus, reindeer, pumpkins, ghosts, turkeys, ducks, bunnies, etc. I recently made a golf course out of cupcakes. My family & friends think that I should begin to sell them throughout the holidays. I love making them & coming up with the designs. I just don’t know how much to charge for a dozen or where to start. Any suggestions or help?! Thank you 🙂