For the rolls: combine 1/8 cup sugar and 1/2 tsp. cinnamon in a small bowl. Use 8-oz package refrigerated crescent rolls and separate dough into 8 triangles. Dip 1 marshmallow into 1/8 cup melted butter and roll in sugar/cinnamon mixture.
Place the marshmallow in the middle of the crescent roll. Fold marshmallow into the dough by wrapping corners of crescent roll and pinching together. Try to get it tight and wrap marshmallow completely. Dip wrapped crescent roll in butter and then in the sugar/cinnamon mix. Placed the coated roll in a muffin time lined with a baking cup. Bake at 375 for 10-15 mins until rolls are done and no longer doughy.