Looking for something to do with all those empty boxes and extra tape from the holidays?

You can use them to build racers for the annual Cardboard Derby at Roundtop Mountain Resort in Lewisberry.

Registration begins at 3 p.m. Sunday, and the derby begins at 4 p.m.

This year's theme is "Barnyard Bonanza," and more than 60 teams have already registered.

The resort is still accepting contestants, who will be judged on creativity and team spirit, in addition to how far their creation makes it down a mountain.

Teams of five are eligible in both youth and adult divisions.

For more information, call 432-9631.