BillandElaine said:
If you make them round, take the leftover pieces, mix with the leftover buttercream and eat with a spoon! <img src="http://www.traveltalkonline.com/forums/images/graemlins/chef.gif" alt="" />
Or you could roll the mixture into a ball, chill in fridge for a bit, then dip in melted chocolate ...
http://candy.about.com/od/otherchocolaterecipes/r/brownie_pops.htm