I think i did it guys, I made a creature that isn't simply renamed/recolored existing creature.
In case plump helmet men weren't wacky enough, here is the dimple cup cow - a creature that can be milked for mushroom milk or butchered for dye. Now for the interesting part: its milk can also be made into dye! I've spent the whole evening making and testing those guys; you wouldn't beieve how relieved I was when I realized the only reason the reaction wasn't working was because the milk was frozen.
Also made a zee-bat (cat-sized vermin-hunting bat), a beak terrier (miniature vermin-hunting beak dog), an elk goose (tiny elk bird), and a cave raptor. Those creatures will be some of the pets of good drows in my new story fort and maybe I'll release them in a separate pack, working title: Dwarven Utility Pet Assortment (DUPA for short).
Next on the list is properly testing the barometz reactions since I learned about reaction classes.
Edit:
In case anyone wanted my dimple cow for any reason.
[CREATURE:SQ_DIMPLE_CUP_COW]
[DESCRIPTION:A large quadrupedal walking mushroom in a vaguely bovine shape. Its head is shaped like a dimple cup, and its flesh can be ground into dye.]
[NAME:dimple cow:dimple cows:dimple cow]
[CASTE_NAME:dimple cow:dimple cows:dimple cow]
[CREATURE_TILE:'C'][COLOR:1:0:0]
[LARGE_ROAMING][MEANDERER]
[BIOME:SUBTERRANEAN_CHASM]
[UNDERGROUND_DEPTH:1:1]
[FREQUENCY:5]
[BENIGN][COMMON_DOMESTIC][PET]
[PETVALUE:300]
[POPULATION_NUMBER:5:10]
[CLUSTER_NUMBER:3:5]
[WAGON_PULLER]
[PREFSTRING:blue color]
[PREFSTRING:fungal smell]
[PREFSTRING:nutritious milk]
[SMELL_TRIGGER:10000] cannot smell
[EXTRAVISION][NOT_LIVING]
[NOBONES]
[BODY:QUADRUPED]
[NO_THOUGHT_CENTER_FOR_MOVEMENT]
[USE_MATERIAL_TEMPLATE:MUSHROOM_OUTER:STRUCTURAL_PLANT_TEMPLATE]
[STATE_NAME_ADJ:ALL_SOLID:scrap]
[MATERIAL_VALUE:1]
[EDIBLE_VERMIN]
[ROTS]
[GENERATES_MIASMA]
[STATE_COLOR:ALL_SOLID:MIDNIGHT_BLUE]
[DISPLAY_COLOR:1:0:1]
[TISSUE:MUSHROOM_OUTER]
[TISSUE_NAME:outer tissue:NP]
[TISSUE_MATERIAL:LOCAL_CREATURE_MAT:MUSHROOM_OUTER]
[STRUCTURAL]
[RELATIVE_THICKNESS:2]
[CONNECTS]
[TISSUE_SHAPE:LAYER]
[HEALING_RATE:50]
[TISSUE:MUSHROOM_INNER]
[TISSUE_NAME:inner tissue:NP]
[TISSUE_MATERIAL:PLANT_MAT:SQ_DIMPLE:MUSHROOM]
[MUSCULAR]
[FUNCTIONAL]
[STRUCTURAL]
[RELATIVE_THICKNESS:1]
[CONNECTS]
[TISSUE_SHAPE:LAYER]
[HEALING_RATE:50]
[BODY_DETAIL_PLAN:EXOSKELETON_TISSUE_LAYERS:MUSHROOM_OUTER:NONE:MUSHROOM_INNER]
[TISSUE_LAYER:BY_CATEGORY:HEAD:MUSHROOM_INNER]
[TISSUE_LAYER:BY_CATEGORY:BODY_UPPER:MUSHROOM_INNER]
[TISSUE_LAYER:BY_CATEGORY:ALL:MUSHROOM_OUTER]
[BODY_DETAIL_PLAN:STANDARD_HEAD_POSITIONS]
[BODY_SIZE:0:0:100000]
[BODY_SIZE:1:0:250000]
[BODY_SIZE:2:0:600000]
[BODY_APPEARANCE_MODIFIER:HEIGHT:90:95:98:100:102:105:110]
[BODY_APPEARANCE_MODIFIER:BROADNESS:90:95:98:100:102:105:110]
[MAXAGE:60:80]
[ATTACK:KICK:BODYPART:BY_CATEGORY:FOOT_FRONT]
[ATTACK_SKILL:STANCE_STRIKE]
[ATTACK_VERB:kick:kicks]
[ATTACK_CONTACT_PERC:100]
[ATTACK_PREPARE_AND_RECOVER:4:4]
[ATTACK_PRIORITY:MAIN]
[ATTACK_FLAG_WITH]
[ATTACK_FLAG_BAD_MULTIATTACK]
[ATTACK:KICK:BODYPART:BY_CATEGORY:FOOT_REAR]
[ATTACK_SKILL:STANCE_STRIKE]
[ATTACK_VERB:kick:kicks]
[ATTACK_CONTACT_PERC:100]
[ATTACK_PREPARE_AND_RECOVER:4:4]
[ATTACK_PRIORITY:MAIN]
[ATTACK_FLAG_WITH]
[ATTACK_FLAG_BAD_MULTIATTACK]
[CHILD:1][GENERAL_CHILD_NAME:dimple cow spawn:dimple cow spawn]
[ALL_ACTIVE]
[APPLY_CREATURE_VARIATION:STANDARD_QUADRUPED_GAITS:900:722:545:325:1900:2900] 27 kph
[APPLY_CREATURE_VARIATION:STANDARD_SWIMMING_GAITS:9000:8900:8825:8775:9500:9900] 1 kph, NO DATA
[APPLY_CREATURE_VARIATION:STANDARD_CRAWLING_GAITS:9000:8900:8825:8775:9500:9900] 1 kph, NO DATA
[SWIMS_INNATE]
[HOMEOTHERM:10040]
[CASTE:FEMALE]
[FEMALE]
[MULTIPLE_LITTER_RARE]
[USE_MATERIAL_TEMPLATE:MILK:MILK_TEMPLATE][REACTION_CLASS:DIMPLE]
[STATE_NAME:ALL_SOLID:frozen dimple cow milk]
[STATE_ADJ:ALL_SOLID:frozen dimple cow milk]
[STATE_NAME:LIQUID:dimple cow milk]
[STATE_ADJ:LIQUID:dimple cow milk]
[STATE_NAME:GAS:boiling dimple cow milk]
[STATE_ADJ:GAS:boiling dimple cow milk]
[PREFIX:NONE]
[MILKABLE:LOCAL_CREATURE_MAT:MILK:20000]
[USE_MATERIAL_TEMPLATE:CHEESE:CREATURE_CHEESE_TEMPLATE]
[STATE_NAME:SOLID:dimple cow cheese]
[STATE_ADJ:SOLID:dimple cow cheese]
[STATE_NAME:SOLID_POWDER:dimple cow cheese powder]
[STATE_ADJ:SOLID_POWDER:dimple cow cheese powder]
[STATE_NAME:LIQUID:melted dimple cow cheese]
[STATE_ADJ:LIQUID:melted dimple cow cheese]
[STATE_NAME:GAS:boiling dimple cow cheese]
[STATE_ADJ:GAS:boiling dimple cow cheese]
[PREFIX:NONE]
[CASTE:MALE]
[MALE]
[CASTE_NAME:dimple cup bull:dimple bulls:dimple bull]
[CHILDNAME:dimple bull spawn:dimple bull spawns]
[SELECT_CASTE:ALL]
[SET_TL_GROUP:BY_CATEGORY:ALL:MUSHROOM_OUTER]
[TL_COLOR_MODIFIER:MIDNIGHT_BLUE:1]
[TLCM_NOUN:exterior:SINGULAR]
[PLANT:SQ_DIMPLE]
[NAME:dimple cow tissue][NAME_PLURAL:dimple cow tissue][ADJ:dimple cup cow tissue]
[USE_MATERIAL_TEMPLATE:MUSHROOM:MUSHROOM_TEMPLATE]
[MATERIAL_VALUE:2]
[BUTCHER_SPECIAL:PLANT:NONE]
[EDIBLE_VERMIN]
[EDIBLE_RAW]
[EDIBLE_COOKED]
[ROTS]
[GENERATES_MIASMA]
[PREFIX:NONE]
[STATE_COLOR:ALL_SOLID:PURPLE]
[DISPLAY_COLOR:1:0:1]
[USE_MATERIAL_TEMPLATE:MILL:PLANT_POWDER_TEMPLATE]
[STATE_NAME_ADJ:ALL_SOLID:dimple cow dye]
[STATE_COLOR:ALL_SOLID:MIDNIGHT_BLUE]
[DISPLAY_COLOR:1:0:1]
[MATERIAL_VALUE:20]
[POWDER_DYE:MIDNIGHT_BLUE]
[PREFIX:NONE]
[MILL:LOCAL_PLANT_MAT:MILL]
[PICKED_TILE:224][PICKED_COLOR:1:0:1]
[GROWDUR:300][VALUE:2]
[REACTION:MAKE_DIMPLE_DYE_SQ]
[NAME:make dye from milk]
[BUILDING:FARMER:NONE]
[REAGENT:mushroom milk:150:LIQUID_MISC:NONE:NONE:NONE][REACTION_CLASS:DIMPLE]
[REAGENT:mushroom milk container:1:NONE:NONE:NONE:NONE]
[CONTAINS:mushroom milk]
[PRESERVE_REAGENT]
[DOES_NOT_DETERMINE_PRODUCT_AMOUNT]
[REAGENT:bag:1:BOX:NONE:NONE:NONE]
[EMPTY]
[BAG]
[PRESERVE_REAGENT]
[DOES_NOT_DETERMINE_PRODUCT_AMOUNT]
[PRODUCT:100:3:POWDER_MISC:NONE:PLANT_MAT:SQ_DIMPLE:MILL]
[PRODUCT_DIMENSION:150]
[PRODUCT_TO_CONTAINER:bag]
[SKILL:DYER]