you can shake drink shakers to make a shaking sound to simulate shaking the drink (#8399)

code/defines/obj/weapon.dm

@@ -35,15 +35,13 @@
 	throw_speed = 3
 	throw_range = 15
 	attack_verb = list("HONKED")
-	var/spam_flag = 0
+	var/last_honk = 0
 
 /obj/item/bikehorn/attack_self(mob/user as mob)
-	if (spam_flag == 0)
-		spam_flag = 1
+	if(last_honk <= world.time - 20) //Spam limiter.
+		last_honk = world.time
 		playsound(src.loc, 'sound/items/bikehorn.ogg', 50, 1)
 		src.add_fingerprint(user)
-		spawn(20)
-			spam_flag = 0
 	return
 
 /obj/item/cane

code/modules/paperwork/paper.dm

@@ -29,7 +29,7 @@
 	var/list/offset_x[0] //offsets stored for later
 	var/list/offset_y[0] //usage by the photocopier
 	var/rigged = 0
-	var/spam_flag = 0
+	var/last_honk = 0
 	var/old_name		// The name of the paper before it was folded into a plane.
 
 	var/const/deffont = "Verdana"
@@ -161,11 +161,10 @@
 
 	user.examinate(src)
 	if(rigged && (Holiday == "April Fool's Day"))
-		if(spam_flag == 0)
-			spam_flag = 1
-			playsound(loc, 'sound/items/bikehorn.ogg', 50, 1)
-			spawn(20)
-				spam_flag = 0
+		if(last_honk <= world.time - 20) //Spam limiter.
+			last_honk = world.time
+			playsound(src.loc, 'sound/items/bikehorn.ogg', 50, 1)
+		src.add_fingerprint(user)
 
 /obj/item/paper/attack_ai(var/mob/living/silicon/ai/user)
 	show_content(user)

code/modules/reagents/reagent_containers/food/drinks.dm

@@ -300,6 +300,14 @@
 	amount_per_transfer_from_this = 10
 	volume = 120
 	center_of_mass = list("x"=16, "y"=8)
+	var/last_shake = 0
+
+/obj/item/reagent_containers/food/drinks/shaker/attack_self(mob/user)
+	if(last_shake <= world.time - 10) //Spam limiter.
+		last_shake = world.time
+		playsound(src.loc, 'sound/items/soda_shaking.ogg', 50, 1)
+	src.add_fingerprint(user)
+	return
 
 /obj/item/reagent_containers/food/drinks/teapot
 	name = "teapot"

html/changelogs/wezzy_shakable_shaker.yml

@@ -0,0 +1,41 @@
+################################
+# Example Changelog File
+#
+# Note: This file, and files beginning with ".", and files that don't end in ".yml" will not be read. If you change this file, you will look really dumb.
+#
+# Your changelog will be merged with a master changelog. (New stuff added only, and only on the date entry for the day it was merged.)
+# When it is, any changes listed below will disappear.
+#
+# Valid Prefixes: 
+#   bugfix
+#   wip (For works in progress)
+#   tweak
+#   soundadd
+#   sounddel
+#   rscadd (general adding of nice things)
+#   rscdel (general deleting of nice things)
+#   imageadd
+#   imagedel
+#   maptweak
+#   spellcheck (typo fixes)
+#   experiment
+#   balance
+#   admin
+#   backend
+#   security
+#   refactor
+#################################
+
+# Your name.  
+author: Wowzewow (Wezzy)
+
+# Optional: Remove this file after generating master changelog.  Useful for PR changelogs that won't get used again.
+delete-after: True
+
+# Any changes you've made.  See valid prefix list above.
+# INDENT WITH TWO SPACES.  NOT TABS.  SPACES.
+# SCREW THIS UP AND IT WON'T WORK.
+# Also, all entries are changed into a single [] after a master changelog generation. Just remove the brackets when you add new entries.
+# Please surround your changes in  double quotes ("), as certain characters otherwise screws up compiling. The quotes will not show up in the changelog.
+changes: 
+  - rscadd: "Adds the ability to shake the drinks shaker. (doesn't actually do anything, just sounds cool.)."