Use a decorating bag and tips to pipe designs on the cupcakes. Or fill a resealable food-storage plastic bag with frosting, and snip a small opening in one bottom corner of the bag; squeeze bag to pipe the frosting.
Lollipop sticks can be purchased online at kitchenkrafts.com.
If you have only one pan and a recipe calls for more cupcakes than your pan will make, cover and refrigerate the rest of the batter while baking the first batch. Cool the pan about 15 minutes, then bake the rest of the batter, adding 1 to 2 minutes to the bake time.