Make cookies. You will need two cookies per treat. Prepare dough and roll out dough 3/16 in. thick. Cut using round Comfort-Grip.
Invert whoopie pie pan and spray with vegetable pan spray. Drape dough over every other pan cavity, pressing to smooth surface. Bake 10-14 minutes, or until firm and golden brown. Cool pan on cooling grid 10 minutes. Carefully loosen bottom edges of pan using spatula.
Fill treats. Fill one cookie with fruit-flavored, hard-shell chewy candies.
Make piñata treats. Prepare royal icing. Tint portions red, green, blue and black; reserve some white.
Use tip 8 and white icing to pipe a line around rim of candy-filled cookie; attach second cookie. Use tip 8 and white icing to pipe an additional line around edge; roll in black sugar.
Decorate ?clock.? Pipe letters for ?numbers? on clock. Use tip 2 and colored icing to pipe P for 12, Y for 6, N for 9 and R for 3 to create spacing; fill with remaining letters in similar colored icing to spell out ?Happy New Year.?
Use tip 2 and black icing to pipe dots between each letter. Use tip 2 and black icing to pipe clock hands at midnight.