Hey,
On my world (Antica) where there are a few Halloween house contests, here is one as an example: https://www.tibia.com/forum/?action=thread&threadid=4823364
I have actually redesigned my museum of wonders and arts to have a Halloween theme, featuring separate themes within each room. I don't know how to add in specific item animations here like other players do, so I will post some pictures of my house so you can see the items I have used and how they look in game then list those items below with some info,:
Halloween theme Museum Ground
Halloween theme Museum 1st floor
Item list
Doctors Room
Vengothic Furniture: You can buy this furniture kit for 280 tc in store.
Ferum skin NPC with Name theme (I chose my name since it fits in well): This cost me 1050 tc to do but you can have a lot of fun with creative names/theme and not all of the skins in store cost 900 tc, They can also be switched out anytime.
Gloomy Poisonous Fungi: This tc item offers some natural purple light and was 60tc.
Ring of Ending: This item gives natural red light and has a constant spinning animation. The ring itself is also hard to get and takes a 50% chance of death to make.
Skeleton Decoration: You can get these fairly cheap, they hang on walls and you can get creative with putting buckets of blood/other items under it.
Bat: This item is really nice, isn't too big so can be placed easily with other items and has 2 animations, one which it flies in the air and glows red. 180 tc from store.
Trophy of Feroxa: Scary trophy, looks nice.
Psychedelic Tapestry: Another nice item which can be hung and actually animates a color glow.
Demonic Tapestry: Another nice item which can be hung with an animated blinking demon eye.
Skull Fetish: This is a large skull with red rune carvings.
Young Lich Worm: Small green looking worm, I placed it in a bucket of blood though there are a lot of options.
Horror Room
Bloody Edge: Fairly cheap and nice sword with natural blood detail on the blade.
Skull totem items: You can add items like Phoenix eggs, Skulls, trophy stand, eternal flames, and non decayable bodies to create cool looking torches/alters. Note: a good place to find a range of non decay map bodies is Edron orcs, though there are many places.
Pet Demon: Tc item for 250 tc, large item so adds impact to room and has 2 animations.
Scroll of ascension: this item is nice as it turns the player into a demon when used then goes on cooldown.
Large Pliers: This is another nice item to combine with other items to create alters or torture scenes. It is unique in that it looks like it has height like a trophy stand but it doesnt impact an items height when placed over it.
Stone Tablet with key lines: This is a quest item so a little annoying to get but it has natural purple rune carvings with a large black background that can act as a natural tile/carpet with an evil overtone effect to it.
Medusa Skull: This item can be bought with silver raid tokens/from market for around 1,5kk on my world. It is a really nice skull as its hair actually animates into snakes that move (without having to be used).
Lost Soul & Purified Soul: These items are nice to add impact to another item, especially the Lost Soul as it looks like a black glowing cloud.
Burned down firewood with Demonbone amulet: I like to place Demonbone amulets over burned down firewood to make an alter effect, the fire wood can be found in game in places like venore.
Smoking Coal: another nice item which animates a smoke or puff. This is cool to add with flames or bodies.
Odd Organ: A large tile item that is bright red, is a good background item to use with designs.
Grimace: This is a nice scream face which is scary.
Diabolic Skull: another nice scary skull item.
Bed of Nails: This is a nice item to use for designs.
Bloody Tears: One of the only blood decal items I have found which can be used for tiles/over bodies or other designs.
Bat Decoration: Really nice and can be hung on walls.
Dragon Room
Burned out Devour Core: This has a nice natural animation and offers a glow of red light.
Flames of the Percht Queen: This is a larger flame item than the eternal flame and offers different options when designing.
Blazing Bone: another nice item for impact.
Dream essence egg: I used these to make a small magic pond look under my dragon, but these could go well with a scary spider theme room.
Main Room
Cluster of Solace: This item looks like a more vibrant spider web and goes well with lighting effects and other items.
Rotten Heart: Black Heart that beats an animation. Looks really nice.
Toy Spider: Nice item, has a crawling animation when used.
Spider Webs: Nice item that can be hung on walls.
Spider Silk: Nice item that can be used for background design.
Larvae: These look like maggots which wriggle on the floor, really cool if you are creative.
Pumpkin Head: You can get these by using kitchen knife on a standard pumpkin, they can also bit lit if you use candles on them.
Yard
Witch Broom: This item in a more beaten down/scary version of the broom.
Scared frog: This is a cool item that looks like a normal frog.
Witches hat: Standard scary deco item.
Goblin Zombie Cask: You get this as a quest reward but it looks like a normal cask, though when used it animates a goblin zombie popping its head up from the barrel.
Stuffed Toad: Standard.
Panther Head: This is another scary skull/head item that can be used.
Rotten Witches Couldron Seed on a slime filled pot: The seed itself fits really nice of the pot, you can still see the liquid, so you can play around with slime/blood.
Exalted Sarcophagus: This is store item is 120 tc and can be opened/shut revealing a mummy inside with glowing red eyes.
Light of Change: TC item for 180 tc, though you can change its light impact from blue/red/green depending on the impact you want.
Carnivorous Plant: This is a nice plant with teeth that snaps its mouth in a natural animation. You can buy this for 150tc.
Glowworms: TC item that be be changed between lit or unlit. The unlit version looks spooky with glowing green worms inside.
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Also, here are two before pictures of the museum of wonders and arts prior to the house of horror theme for some context:
Museum of Wonders & Arts ground
Museum of Wonders & Arts 1st floor
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I was wondering what other items could I use to add to a Halloween theme house?
I see that there is a question asking what is the creepiest/scariest them house here: https://www.tibiaqa.com/17507/what-house-decorations-are-the-darkest-and-creepiest
But I am not wanting just creepy or scary, I am wanting to know what items I can use that are Halloween themed (the holiday/event itself) and not just creepy or scary items as I feel these contests will require more original thinking for Halloween itself.
~Shady