I found a glitch that allows for uhm, not sure what to call them. Admin only furni ? (Will post a video in more detail if it's allowed to be posted) not sure of all the sites rules
All i managed to find out is the stuff spawned in with this glitch are local only, so any other player in your room would just see the furni you did the glitch with, well be it in a glitched state.
Mostly it clipping through a wall or something. Screenshots taken are not local only and will carry over into the rooms Thumbnail.
Also for whatever reason the stuff you spawn in depends on what version of the game you're playing.
Like these are from Habbo-NL
And me doing the same glitch in Habbo .com
Havent found any mention of this anywhere so thought i'd post it.
uhm... let me know what you think i guess !