diff --git a/modular_doppler/research/designs/limbgrower_designs.dm b/modular_doppler/research/designs/limbgrower_designs.dm
new file mode 100644
index 0000000000000..af1590b6949ed
--- /dev/null
+++ b/modular_doppler/research/designs/limbgrower_designs.dm
@@ -0,0 +1,237 @@
+/obj/machinery/limbgrower/Initialize(mapload)
+	categories += list(SPECIES_SNAIL, SPECIES_SLUGCAT, SPECIES_ANTHROMORPH, SPECIES_INSECTOID, SPECIES_AQUATIC)
+	return ..()
+
+/datum/design/leftarm/New()
+	category += list(SPECIES_SNAIL, SPECIES_SLUGCAT, SPECIES_ANTHROMORPH, SPECIES_INSECTOID, SPECIES_AQUATIC)
+	return ..()
+
+/datum/design/rightarm/New()
+	category += list(SPECIES_SNAIL, SPECIES_SLUGCAT, SPECIES_ANTHROMORPH, SPECIES_INSECTOID, SPECIES_AQUATIC)
+	return ..()
+
+/datum/design/leftleg/New()
+	category += list(SPECIES_SNAIL, SPECIES_SLUGCAT, SPECIES_ANTHROMORPH, SPECIES_INSECTOID, SPECIES_AQUATIC)
+	return ..()
+
+/datum/design/rightleg/New()
+	category += list(SPECIES_SNAIL, SPECIES_SLUGCAT, SPECIES_ANTHROMORPH, SPECIES_INSECTOID, SPECIES_AQUATIC)
+	return ..()
+
+/datum/design/tongue/snail
+	name = "Snail Tongue"
+	id = "snailtongue"
+	build_path = /obj/item/organ/internal/tongue/snail
+	category = list(
+		SPECIES_SNAIL,
+		RND_CATEGORY_INITIAL,
+	)
+
+/datum/design/liver/snail
+	name = "Snail Liver"
+	id = "snailliver"
+	build_path = /obj/item/organ/internal/liver/snail
+	category = list(
+		SPECIES_SNAIL,
+		RND_CATEGORY_INITIAL,
+	)
+
+/datum/design/heart/snail
+	name = "Snail Heart"
+	id = "snailheart"
+	build_path = /obj/item/organ/internal/heart/snail
+	category = list(
+		SPECIES_SNAIL,
+		RND_CATEGORY_INITIAL,
+	)
+
+/datum/design/ears/cat
+	name = "Cat Ears, Variety"
+	id = "catearsvariety"
+	build_path = /obj/item/organ/internal/ears/cat
+	category = list(
+		SPECIES_HUMAN,
+		RND_CATEGORY_INITIAL,
+	)
+
+/datum/design/ears/lizard
+	name = "Lizard Ears"
+	id = "lizardears"
+	build_path = /obj/item/organ/internal/ears/lizard
+	category = list(
+		SPECIES_HUMAN,
+		RND_CATEGORY_INITIAL,
+	)
+
+/datum/design/ears/fox
+	name = "Fox Ears"
+	id = "foxears"
+	build_path = /obj/item/organ/internal/ears/fox
+	category = list(
+		SPECIES_HUMAN,
+		RND_CATEGORY_INITIAL,
+	)
+
+/datum/design/ears/dog
+	name = "Dog Ears"
+	id = "dogears"
+	build_path = /obj/item/organ/internal/ears/dog
+	category = list(
+		SPECIES_HUMAN,
+		RND_CATEGORY_INITIAL,
+	)
+
+/datum/design/ears/bunny
+	name = "Bunny Ears"
+	id = "bunnyears"
+	build_path = /obj/item/organ/internal/ears/bunny
+	category = list(
+		SPECIES_HUMAN,
+		RND_CATEGORY_INITIAL,
+	)
+
+/datum/design/ears/bird
+	name = "Bird Ears"
+	id = "birdears"
+	build_path = /obj/item/organ/internal/ears/bird
+	category = list(
+		SPECIES_HUMAN,
+		RND_CATEGORY_INITIAL,
+	)
+
+/datum/design/ears/mouse
+	name = "Mouse Ears"
+	id = "mouseears"
+	build_path = /obj/item/organ/internal/ears/mouse
+	category = list(
+		SPECIES_HUMAN,
+		RND_CATEGORY_INITIAL,
+	)
+
+/datum/design/ears/monkey
+	name = "Monkey Ears"
+	id = "monkeyears"
+	build_path = /obj/item/organ/internal/ears/monkey
+	category = list(
+		SPECIES_HUMAN,
+		RND_CATEGORY_INITIAL,
+	)
+
+/datum/design/ears/deer
+	name = "Deer Ears"
+	id = "deerears"
+	build_path = /obj/item/organ/internal/ears/deer
+	category = list(
+		SPECIES_HUMAN,
+		RND_CATEGORY_INITIAL,
+	)
+
+/datum/design/ears/fish
+	name = "Fish Ears"
+	id = "fishears"
+	build_path = /obj/item/organ/internal/ears/fish
+	category = list(
+		SPECIES_HUMAN,
+		RND_CATEGORY_INITIAL,
+	)
+
+/datum/design/ears/bug
+	name = "Bug Ears"
+	id = "bugears"
+	build_path = /obj/item/organ/internal/ears/bug
+	category = list(
+		SPECIES_HUMAN,
+		RND_CATEGORY_INITIAL,
+	)
+
+/datum/design/ears/humanoid
+	name = "Humanoid Ears"
+	id = "humanoidears"
+	build_path = /obj/item/organ/internal/ears/humanoid
+	category = list(
+		SPECIES_HUMAN,
+		RND_CATEGORY_INITIAL,
+	)
+
+/datum/design/tail
+	name = "Mouse Tail"
+	id = "mousetail"
+	build_type = LIMBGROWER
+	build_path = /obj/item/organ/external/tail/mouse
+	reagents_list = list(/datum/reagent/medicine/c2/synthflesh = 25)
+	category = list(
+		RND_CATEGORY_LIMBS_OTHER,
+		RND_CATEGORY_INITIAL,
+	)
+
+/datum/design/tail/dog
+	name = "Dog Tail"
+	id = "dogtail"
+	build_path = /obj/item/organ/external/tail/dog
+	category = list(
+		RND_CATEGORY_LIMBS_OTHER,
+		RND_CATEGORY_INITIAL,
+	)
+
+/datum/design/tail/fox
+	name = "Fox Tail"
+	id = "foxtail"
+	build_path = /obj/item/organ/external/tail/fox
+	category = list(
+		RND_CATEGORY_LIMBS_OTHER,
+		RND_CATEGORY_INITIAL,
+	)
+
+/datum/design/tail/bunny
+	name = "Bunny Tail"
+	id = "bunnytail"
+	build_path = /obj/item/organ/external/tail/bunny
+	category = list(
+		RND_CATEGORY_LIMBS_OTHER,
+		RND_CATEGORY_INITIAL,
+	)
+
+/datum/design/tail/bird
+	name = "Bird Tail"
+	id = "birdtail"
+	build_path = /obj/item/organ/external/tail/bird
+	category = list(
+		RND_CATEGORY_LIMBS_OTHER,
+		RND_CATEGORY_INITIAL,
+	)
+
+/datum/design/tail/bug
+	name = "Bug Tail"
+	id = "bugtail"
+	build_path = /obj/item/organ/external/tail/bug
+	category = list(
+		RND_CATEGORY_LIMBS_OTHER,
+		RND_CATEGORY_INITIAL,
+	)
+
+/datum/design/tail/deer
+	name = "Deer Tail"
+	id = "deertail"
+	build_path = /obj/item/organ/external/tail/deer
+	category = list(
+		RND_CATEGORY_LIMBS_OTHER,
+		RND_CATEGORY_INITIAL,
+	)
+
+/datum/design/tail/fish
+	name = "Fish Tail"
+	id = "fishtail"
+	build_path = /obj/item/organ/external/tail/fish
+	category = list(
+		RND_CATEGORY_LIMBS_OTHER,
+		RND_CATEGORY_INITIAL,
+	)
+
+/datum/design/tail/humanoid
+	name = "Humanoid Tail"
+	id = "humanoidtail"
+	build_path = /obj/item/organ/external/tail/humanoid
+	category = list(
+		RND_CATEGORY_LIMBS_OTHER,
+		RND_CATEGORY_INITIAL,
+	)
diff --git a/tgstation.dme b/tgstation.dme
index 15915e1924c05..ab6d41fa5f1bd 100644
--- a/tgstation.dme
+++ b/tgstation.dme
@@ -6916,6 +6916,7 @@
 #include "modular_doppler\religion\code\chaplain.dm"
 #include "modular_doppler\religion\code\mind.dm"
 #include "modular_doppler\religion\code\religious_sects.dm"
+#include "modular_doppler\research\designs\limbgrower_designs.dm"
 #include "modular_doppler\sprite_accessories\code\hair.dm"
 #include "modular_doppler\stone\code\ore_veins.dm"
 #include "modular_doppler\stone\code\stone.dm"