Popcicle man recipe bookA popsicle man nigh identical to the average human, except for one minor detail: they're made out of popsicle.
First, you would create the fudge popsicle material. It would have a somewhat low melting point, enough so that it would melt in a temperate environment and be very fragile. This will cause the popsicle man to experience incredible pain upon standing in a warm place for too long.
Secondly, I would suggest that you make a copy of the bronze colossus raws to get an idea of how to make a non-biological creature:
[CREATURE:COLOSSUS_BRONZE]
[DESCRIPTION:A gigantic magic statue made of bronze and bent on mayhem.]
[NAME:bronze colossus:bronze colossuses:bronze colossus]
[CASTE_NAME:bronze colossus:bronze colossuses:bronze colossus]
[CREATURE_TILE:'C'][COLOR:6:0:0]
[MEGABEAST][DIFFICULTY:15] 11 or higher does not get assigned as adv mode quests
[ATTACK_TRIGGER:80:10000:100000]
[FANCIFUL]
[NOPAIN][EXTRAVISION][NOBREATHE][NOSTUN][NONAUSEA][NOEMOTION]
[NOTHOUGHT][NOEXERT]
[NO_DIZZINESS]
[NO_FEVERS]
[BUILDINGDESTROYER:2]
[LARGE_PREDATOR]
[NO_DRINK][NO_EAT][NO_SLEEP]
[SPHERE:METALS]
[SPHERE:STRENGTH]
[SPHERE:WAR]
[NOT_LIVING]
[CANOPENDOORS]
[NOT_BUTCHERABLE]
[BIOME:ANY_LAND]
[EQUIPS]
[NOFEAR]
[PREFSTRING:height]
[NOBONES]
[ODOR_LEVEL:0] no smell
[SMELL_TRIGGER:10000] cannot smell
[BODY:HUMANOID_NECK:2EYES:2EARS:NOSE:HUMANOID_JOINTS:5FINGERS:5TOES]
[NO_THOUGHT_CENTER_FOR_MOVEMENT]
[TISSUE:BRONZE]
[TISSUE_NAME:bronze:bronze]
[TISSUE_MATERIAL:INORGANIC:BRONZE]
[MUSCULAR]
[FUNCTIONAL]
[STRUCTURAL]
[RELATIVE_THICKNESS:1]
[CONNECTS]
[TISSUE_SHAPE:LAYER]
[TISSUE_LAYER:BY_CATEGORY:ALL:BRONZE]
[BODY_SIZE:0:0:20000000]
[BODY_APPEARANCE_MODIFIER:HEIGHT:90:95:98:100:102:105:110]
[BODY_APPEARANCE_MODIFIER:BROADNESS:90:95:98:100:102:105:110]
[ATTACK:PUNCH:BODYPART:BY_TYPE:GRASP]
[ATTACK_SKILL:GRASP_STRIKE]
[ATTACK_VERB:punch:punches]
[ATTACK_CONTACT_PERC:100]
[ATTACK_PREPARE_AND_RECOVER:3:3]
[ATTACK_FLAG_WITH]
[ATTACK_PRIORITY:MAIN]
[ATTACK:KICK:BODYPART:BY_TYPE:STANCE]
[ATTACK_SKILL:STANCE_STRIKE]
[ATTACK_VERB:kick:kicks]
[ATTACK_CONTACT_PERC:100]
[ATTACK_PREPARE_AND_RECOVER:4:4]
[ATTACK_FLAG_WITH]
[ATTACK_PRIORITY:SECOND]
[ATTACK_FLAG_BAD_MULTIATTACK]
[ITEMCORPSE:STATUE:NO_SUBTYPE:INORGANIC:BRONZE]
[ITEMCORPSE_QUALITY:5]
[DIURNAL]
[LAIR:SHRINE:100]
[APPLY_CREATURE_VARIATION:STANDARD_BIPED_GAITS:900:657:438:219:1900:2900] 40 kph
[APPLY_CREATURE_VARIATION:STANDARD_CLIMBING_GAITS:2990:2257:1525:731:4300:6100] 12 kph
[APPLY_CREATURE_VARIATION:STANDARD_SWIMMING_GAITS:2990:2257:1525:731:4300:6100] 12 kph
[APPLY_CREATURE_VARIATION:STANDARD_CRAWLING_GAITS:2990:2257:1525:731:4300:6100] 12 kph
[SWIMS_LEARNED]
And remove/change any tags your creature shouldn't possess, things such as [MEGABEAST], [LAIR], [SPHERE], [BODY_SIZE] and [POWER]. Once you've striped down the bronze colossus and changed the name and description and all the jazz, you'll want to replace the material that the creature is made of.
To do that you'll need to change the [TISSUE: BRONZE] and [TISSUE_LAYER] tags to match the name of your popsicle material. Once you've done that you're pretty much done as far as simply making the creature.
After that, you'll want to add flavor.
Things such as setting them to the right hypotherm value and changing their spawn biome to glacier I think you can figure out.
You'll also probably want them to be able to speak, so you'll want to borrow a language file.
As far as your next questions, technically a creature only needs a [THOUGHTCENTER] to live, which can be circumnavigated by adding the [NO_THOUGHT_CENTER_FOR_MOVEMENT] tag, which the bronze colossus already has.
If you don't say it needs organs, it doesn't need them, and even if you make organs out of fire they'll still function just as good as flesh.