What is the largest MLP item you own?...

[babymoondust]

My G1 duvet & pillow cover set! <3 I love it so much. It's on display whenever it's on my bed, lol! ^_^

[loverofbalto]

My biggest item has to be either my Crystal Palace or my handmade Minty plushie I got at the 2009 WI Pony Meet.  Aurora's mom made it and I love her so much.  She is pretty big.  They're not on display but they are stored in the front room.

[MLPMegaLover]

A G3 School Suitcase with Cupcake and Thistle wistle in it with a text that says: "Best friends"

[Rairi]

My Twist and Style Starsong...smaller than a lot of the items on this list She's standing on my computer tower.

[SweetScoops]

My biggest pony item have to be the Lullbye Nursery, It's my only playset And I have never had the space to own anything bigger, though I'd really want the Dream Castle one day! <3

[aellos]

The FS ponies acutally. DX

[MissSleepless]

The big pink G3 castle...thing. xD
It's not on display because of space issues, but me and my dad got it for a few quid and couldn't say no. So it's sulking somewhere in my loft for now!

[RAMChYLD]

Tie between the Rainbow Dash rocking horse and the two 24" Pinkie Pie plushes.

[TickledPink]

The largest item I own is the PE. But the largest thing I have that is not on display is my bowtie pajama case <3

[Elfpony]

Mine's the G3 Crystal Rainbow Castle.  It's set up on the floor of my pony room and it does take up quite a lot of space.  I've also got a 3 foot fakie plush that I got at a carnival a couple of years ago.  She's sitting on top of my trade box in a corner (crap, I'm about to get a new shelf and will have to figure out where to move that too...)

Elf

[munchy]

The biggest thing technically on display would be the g3 popup castle, only because I haven't been able to find room in the basement for yet another storage bin! As for my collection as a whole, I'd say its a tie between the Paradise Estate (currently spread across 2 storage bind and a garbage bag) and my giant Sparkleworks my friends won for me at a carnival.

[Dyzarktarzk]

Largest item on display? 

Mexican Lullabye Nursery, Mexican Show Stable, and G3 Crystal Princess Castle.

And my dear G3 Rainbow Dash plushie =)  (Next to my bed)

[Ponytails]

Frilly Frocks 3 ft pony plush, in the bedroom.  Next up is my FIM Store Display with ponies in it *lol*

[ShortyBoo]

I don't collect playsets so most of my collection is just normal sized G1, G2, G3 and G4 ponies along with a bunch of blind bag ponies and McPonies. I do have that pillow plush Twilight Sparkle they had at Target as part of the Canterlot set. She sits on top of the tall bookcase in my room with a few other stuffed animals. I also have the throw, which usually stays out in the living room since I use it while watching TV, and the comforter from the Canterlot set, which I use as my regular blanket.

[Saber-Toothed Crow]

My largest item would be Celebration Castle, which is currently dismantled and stored away in a box in the spare room because of lack of space. Otherwise it's my G1 sleeping bag folded at the end of my bed with a Sweetsong plush perched on top of it.