down a steep hill in their DIY sleds. Cardboard cats ... From YouTube: Scenes from the cardboard sled races at Mulligan's Hollow ski bowl during Winterfest in Grand Haven, Mich.

All year long, they’ve been collecting cardboard for the big day. And on Friday, Feb. 28, they will get to showcase their ...

GRAND HAVEN, MI-- Sledders equipped with customized cardboard sleds plunged down the Mulligan’s Hollow ski bowl on Saturday. Over 150 creative and unique cardboard sleds were built using ...