Rewards from Workshop Rooms:
Snowball Throwing Gallery - Candy Shoulderpads & Nano Crystal (Throw Snowball v2.2)
Gift Wrapping Room - Play Costume - Holiday Series #3
Package Sorting - Frying Pan
Factory Room - Antlers
Factory Storage Room - Phasefront Sleigh
Transportation Room - Random Drops from Alien Commander
Note: Sometimes even if you are not in the Gallery, you will get the Nano Crystal (Throw Snowball v2.2) as an additional reward.
Random Drops:
Candy Cane (Replica)
Fake Beard (Replica)
Manex Ear Protection Units (Replica)
Small Snowball
Big Snowball
The CalcuL33T Action Figure
The MascuL33T Action Figure
The Naughty List Bikini Top (Replica)
The Naughty List Boxers (Replica)
The SantaL33T Action Figure
The VioL33T Action Figure
The L33Tzilla Action Figure
The CheerL33T Action Figure
Top Hat
Twigs
Zingy Scarf
Pretty Scarf
Double Candy Canes (Replica) - Can be used as a backpack
Nano Crystal (Elfleet Helper)
Nano Crystal (Zix-in-a-Box)
Sprig of Mistletoe (Replica)
Dancing Mr. Claus (Replica)
Snowman (Replica)
Carrot
Pebbles
Nano Crystal (Zix-in-a-Box)
Santa Bag (Replica)
Winter Sweater (Replica)
Winter Survival Kit (Replica)
Hovering Holiday Lantern - Utils (Replica),
The Naughty List Bikini Bottoms (Replica)
Winter Jacket (Replica)
Note: All items with "(Replica)" are duplicates, it means that it has dropped in previous years.
Tradeskills:
Small Snowball + Big Snowball = A Snowman Body and Head
Carrot + A Snowman Body and Head = Snowman With a Carrot Nose
Twigs + Snowman With a Carrot Nose = Snowman With Twigs for Arms
Top Hat + Snowman With Twigs for Arms = Snowman With a Top Hat
Pebbles + Snowman With a Top Hat = Snowman With Pebbles for Eyes
Note: The last Step has two options.
Zingy Scarf + Snowman With Pebbles for Eyes = Zingy Snowman
or
Pretty Scarf + Snowman With Pebbles for Eyes = Pretty Snowman
Iceleets and Antleets are in-game, they have been found in regular towns (like Old Athen).
Note: They seem to spawn during night time.
Loot:
Holiday Nanospray - Snowflake (8 different patterns btw)
Christmas Icicle Lights
Snowflake Etching Machine - Empty
Golden Star Nanospray
Floating Silver Star Torch - Shoulder
Floating Golden Star Torch - Shoulder
Icicle Sword - Left Hand
Winter Leet Pet (Winter Leet Series 1)
Silver Star Field Nanospray
Christmas Gift (spawns one of the following: Perfumed Morning Rob, Holiday Boogaloo Suit - Green & Red, Christmas Tree Ornaments, Funny Arrow, Gingerbread Yutto Tent, Santa Leet Doll, Gingerbread Leet, Snow Blower - Left, Monster Sunglasses, Monster Sunglasses, Pine Tree)
Note: If you use a Screwdriver on "Snow Blower - Left", it turns into "Snow Blower - Right". The same applies to "Icicle Sword - Left Hand".
Tradeskills:
Christmas Tree Ornaments + Pine Tree = Christmas Tree
Note: You can also get the Pine Tree from the Santa Leet if you give him either a Chocolate Cake or Wedding Cake or Chocolate Chip Muffin.