I've created a new plugin : "HUB". You can set ONE Hub Location and go to that point when you want or when players join and MULTIPLES Lobby Locations ! Now you have 4 plugins ! HatGUI, ParticlesGUI, PlayerToggle and Hub

NEW IN THIS UPDATE:

Clear inventory when a player change world (when a player leave the HUB world ! )
Clear inventory when a player leave the server

One Hub Points
Multiple Lobby Points
Firework on Join
Boosts
Customizable Title on Join
Teleport to Hub Point on Join
Give Saturation on Join
Give Items for HatGUI, ParticlesGUI & PlayerToggle
Teleport to Hub when a Player Fall in the Void
BossBar Support !
Console Sender Support
ActionBar

/HubPlugin -> Help ( No Permission Needed )
/SetHub -> Set Hub Location ( Permission : hub.set / Default : op )
/Hub -> Teleport to Hub Location ( Permission : hub.tp / Default : all )
/Hub <player> -> Teleport a player to Hub Location ( Only op )
/SetLobby <id> -> Set Multiple Lobby Location( Permission : hub.set / Default : op )
/Lobby <name> -> Teleport to a Lobby Location ( Permission : hub.tp / Default : all )
/Lobby <name> <player> -> Teleport a player to a Lobby Location ( Only op )
/RemoveLobby <id> -> Remove a Lobby Location ( Permission : hub.remove / Default : op )
/RemoveHub <id> -> Remove Hub Location ( Permission : hub.remove / Default : op )
/Fw -> Launch a Firework ( Permission : hub.firework / Default : op )
/Title -> Send Title to all players ( Permission : hub.titlesend / Default : op )
/SetTitle -> Set Title ( Permission : hub.titlesend / Default : op )
/SetSubTitle -> Set SubTitle ( Permission : hub.titlesend / Default : op )
/ActionBar -> Send an ActionBar Message to all players ( Permission : hub.actionbarsend / Default : op )
/SetActionBar-> Set the ActionBar ( Permission : hub.actionbarsend / Default : op )

Number_Of_Lobbies -> Don't touch that !

DOWNLOAD BOSSBARAPI : http://dev.bukkit.org/bukkit-plugins/bar-api/

French :

English (Thanks to DirectorDoc) :

SlotItem: 6
Message: '&d[HatGui] &aYou have %hat% particles !'
MessageRemoved: '&d[HatGui] &aHats Removed !'

The First line is for the slot. When the player join, item will be give in this slot.

The second line is the message which display when a player select a hat. You can use %hat%. It will be replace by the Hat !

The third line is the message which display when a player remove his Hat.

Type /hmenu to display the menu ! Or right click on the Hat Item.

Permission to use every hats:

hat.pumpkin
hat.stone
hat.workbench
hat.furnace
hat.glass
hat.jukebox
hat.goldblock
hat.diamondblock
hat.ironblock
hat.redstoneblock
hat.sponge
hat.sealantern
hat.tnt
hat.beacon

SlotItem: 4
Message: '&d[ParticlesGui] &9You have %particle% particles !'
MessageRemoved: '&d[ParticlesGui] &9Particles Removed !'

The First line is for the slot. When the player join, item will be give in this slot.

The second line is the message which display when a player select a hat. You can use %particle%. It will be replace by the Particle !

The third line is the message which display when a player remove his Particle.

Type /pmenu to display the menu ! Or right click on the Particle Item.

Permission to use every particles:

particles.smoke
particles.heart
particles.villagerhappy
particles.note
particles.lava
particles.water
particles.redstone

Just right click on the item to hide/show all players

SlotItem: 2 -> When the player join, item will be give in this slot.
Hide: '&aPlayers are invisible !' -> Message on invisble.
Show: '&aPlayers are shown !' -> Message on show.

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Sounds
Gadgets
Double Jump
Tab - Head & Footer Support
More Particles/Hats
Don't hide players who poccess certains permissions
(Pets)
( What you want ( Tell me about this in comments ) )

If you see any bugs, tell me !

Thanks for your download ! If you makes a video, send me a tweet by Twitter : @azen0xgaming If you wants to pay me a cookie : https://www.paypal.me/AlexisHAYAT

Hub/Lobby + FireWorks & Titles - Hat - Particles - PlayerToggle - BossBar - ActionBar