I think the smiles were mostly due to all the great food :)
Bake one box of chocolate fudge brownies according to pkg.
Allow to cool.
2 containers of cool whip
1 bag of Heath bar pieces
2 boxes instant chocolate mousse
-Prepare according to pkg.
Cut up brownies and layer half on bottom of trifle dish
Spread chocolate mousse on top of brownies (one entire pkg.)
Spread cool whip over mousse (one entire container)
Sprinkle ½ bag of Heath pieces over cool whip.
Chill and serve!