Disclaimer: I don't own any of the characters.
"Sandalphon, I think that's big enough." Lucifer chuckled, as the little angel continued rolling a behemoth of a snowball, half again as large as himself, across the ground. Nodding, he left it where it sat, and began rolling another. Soon they had three snowballs of varying sizes lined up on the ground.
"Now what do we do?" Sandalphon asked, fluttering around in a little circle..
"Stack the snowballs on top of each other." Lucifer explained, picking up the middle-sized one, and setting it on top of the largest.
Sandalphon grinned, and wrapped his arms around the smallest snowball. He wasn't tall enough to place it at the top of the stack; so Lucifer scooped him up, and held him while he deposited the snowball in its proper place.
"It doesn't really look like a person." Sandalphon said, cocking his head to the side as he studied the stack of snowballs.
"It's not finished yet." Lucifer told him, "It still needs arms and a face."
Sandalphon mouthed a silent "oh" as he watched the supreme primarch select two sticks from the ground beneath one of the many trees in the garden.
"You put them in like this." Lucifer instructed; handing one of the sticks to the little angel, and pushing the other into the snowman's body. Sandalphon nodded, and tried to copy Lucifer's actions.
"How do you make the face?" he asked, looking up at the topmost snowball.
Lucifer pulled out a handful of charcoal, and a carrot.
"Skyfarers use these to make eyes, a nose, and a mouth." he said.
Sandalphon glanced from the snowman, to the items in Lucifer's hand; before taking the carrot, and poking it into the centre of the snowman's head. Lucifer followed up with the eyes, then the two of them worked together to place the remaining charcoal lumps into a smile; before standing back to survey their work.
"I think it looks pretty good." Lucifer said, picking Sandalphon up, and holding him close to his chest.
The arms were anything but symmetrical, and the face wasn't the best rendition of the intended smile, but for their first attempt, it was quite admirable.
Sandalphon smiled, and snuggled closer to his creator as fresh snow began to fall around them.