Bake and cool bear cake using your favorite cake recipe and following pan directions. Trim off paw that is in the bear's mouth.
Make buttercream icing divide icing and tint a small amount black, tint remainder brown with a little red-red. Alternately, use chocolate buttercream icing for the brown icing.
Using fondant, shape bear's front leg and attach to cake with icing positioning as if holding box.
Using tip 4 and black icing, pipe dot eyes, pipe in nose, and outline string mouth. Pat down eyes and nose with finger dipped in cornstarch. Using tip 4 and brown icing outline pads of feet and inside ears; fill in and pat smooth with finger dipped in cornstarch. Using tip 16 and brown icing, cover bear with stars.
Assemble favor boxes. Set aside one box; fill remaining boxes with your favorite favor candy. Close all boxes and attach bows.
Cut a 2 x 6 in. rectangular piece of cake board. Insert short end of board into bear's belly under paws where box will be positioned; allow 2 in. to protrude. Position the unfilled favor box, secure with additional icing if necessary.