diff --git a/mods/ITEMS/mcl_ocean/init.lua b/mods/ITEMS/mcl_ocean/init.lua
index eff854dc30..869282b113 100644
--- a/mods/ITEMS/mcl_ocean/init.lua
+++ b/mods/ITEMS/mcl_ocean/init.lua
@@ -15,9 +15,10 @@ minetest.register_node("mcl_ocean:sea_lantern", {
 		}
 	},
 	tiles = {{name="mcl_ocean_sea_lantern.png", animation={type="vertical_frames", aspect_w=32, aspect_h=32, length=1.25}}},
-	groups = {oddly_breakable_by_hand=3, building_block=1},
+	groups = {handy=1, building_block=1},
 	sounds = mcl_sounds.node_sound_glass_defaults(),
 	_mcl_blast_resistance = 1.5,
+	_mcl_hardness = 0.3,
 })
 
 minetest.register_node("mcl_ocean:prismarine", {
@@ -25,9 +26,10 @@ minetest.register_node("mcl_ocean:prismarine", {
 	stack_max = 64,
 	is_ground_content = false,
 	tiles = {{name="mcl_ocean_prismarine_anim.png", animation={type="vertical_frames", aspect_w=32, aspect_h=32, length=45.0}}},
-	groups = {cracky=3, building_block=1},
+	groups = {pickaxey=1, building_block=1},
 	sounds = mcl_sounds.node_sound_stone_defaults(),
 	_mcl_blast_resistance = 30,
+	_mcl_hardness = 1.5,
 })
 
 minetest.register_node("mcl_ocean:prismarine_brick", {
@@ -35,9 +37,10 @@ minetest.register_node("mcl_ocean:prismarine_brick", {
 	stack_max = 64,
 	is_ground_content = false,
 	tiles = {"mcl_ocean_prismarine_bricks.png"},
-	groups = {cracky=2, building_block=1},
+	groups = {pickaxey=1, building_block=1},
 	sounds = mcl_sounds.node_sound_stone_defaults(),
 	_mcl_blast_resistance = 30,
+	_mcl_hardness = 1.5,
 })
 
 minetest.register_node("mcl_ocean:prismarine_dark", {
@@ -45,9 +48,10 @@ minetest.register_node("mcl_ocean:prismarine_dark", {
 	stack_max = 64,
 	is_ground_content = false,
 	tiles = {"mcl_ocean_prismarine_dark.png"},
-	groups = {cracky=2, building_block=1},
+	groups = {pickaxey=1, building_block=1},
 	sounds = mcl_sounds.node_sound_stone_defaults(),
 	_mcl_blast_resistance = 30,
+	_mcl_hardness = 1.5,
 })
 
 -- Craftitems
diff --git a/mods/ITEMS/mcl_sponges/init.lua b/mods/ITEMS/mcl_sponges/init.lua
index 39b49df51a..ad73f7e1cc 100644
--- a/mods/ITEMS/mcl_sponges/init.lua
+++ b/mods/ITEMS/mcl_sponges/init.lua
@@ -10,7 +10,7 @@ minetest.register_node("mcl_sponges:sponge", {
 	buildable_to = false,
 	stack_max = 64,
 	sounds = mcl_sounds.node_sound_dirt_defaults(),
-	groups = {snappy=2,choppy=2,oddly_breakable_by_hand=3,building_block=1},
+	groups = {handy=1, building_block=1},
 	   	on_place = function(itemstack, placer, pointed_thing)
 		local pn = placer:get_player_name()
 		if pointed_thing.type ~= "node" then
@@ -78,6 +78,7 @@ minetest.register_node("mcl_sponges:sponge", {
 		
 	end,
 	_mcl_blast_resistance = 3,
+	_mcl_hardness = 0.6,
 })
 
 minetest.register_node("mcl_sponges:sponge_wet", {
@@ -92,8 +93,9 @@ minetest.register_node("mcl_sponges:sponge_wet", {
 	buildable_to = false,
 	stack_max = 64,
 	sounds = mcl_sounds.node_sound_dirt_defaults(),
-	groups = {snappy=2,choppy=2,oddly_breakable_by_hand=3,building_block=1},
+	groups = {handy=1, building_block=1},
 	_mcl_blast_resistance = 3,
+	_mcl_hardness = 0.6,
 })
 
 minetest.register_craft({
diff --git a/mods/ITEMS/signs/init.lua b/mods/ITEMS/signs/init.lua
index 92c9c2eccc..8ea0c26d8f 100644
--- a/mods/ITEMS/signs/init.lua
+++ b/mods/ITEMS/signs/init.lua
@@ -137,7 +137,7 @@ local signs_yard = {
     {delta = {x = 0.05, y = 0, z = 0}, yaw = math.pi / 2},
 }
 
-local sign_groups = {choppy=2, flammable=1, deco_block=1}
+local sign_groups = {handy=1,axey=1, flammable=1, deco_block=1}
 
 local construct_sign = function(pos)
     local meta = minetest.get_meta(pos)
@@ -265,6 +265,8 @@ minetest.register_node("signs:sign_wall", {
 	on_punch = function(pos, node, puncher)
 		update_sign(pos)
 	end,
+	_mcl_hardness = 1,
+	_mcl_blast_resistance = 5,
 })
 
 minetest.register_node("signs:sign_yard", {
@@ -297,6 +299,8 @@ minetest.register_node("signs:sign_yard", {
 	on_punch = function(pos, node, puncher)
 		update_sign(pos)
 	end,
+	_mcl_hardness = 1,
+	_mcl_blast_resistance = 5,
 })
 
 minetest.register_entity("signs:text", {