PREPARE cookies according to package directions; immediately press 3 to 5 Buncha Crunch pieces on each of 20 cookies. Cool on baking sheets for 1 minute; remove to wire racks to cool completely.
MIX ice cream and chopped Crunch bars; freeze for 5 minutes. Spread flat side of remaining plain sugar cookies with 2 tablespoons; top each with 1 decorated cookie to create a sandwich.
WRAP each sandwich tightly in plastic wrap; freeze for at least 1 hour. Let stand at room temperature for 5 minutes before serving.
Use 1 package (16.5 oz.) NESTLÉ TOLL HOUSE Refrigerated Mini Chocolate Chip Cookie Bar Dough. Prepare cookies according to package directions; immediately press 5 Chewy WONKA TART N TINYS on each of 20 cookies. Follow remaining directions above.