CasinoWarps was requested by a user on the Bukkit Forums, so here it is.
Commands:
/casinowarps - Opens a GUI with all the warps.
/casinowarps set <name> - Set a new warp
/casinowarps reload - Reload the config
Aliases: /casinowarp and /cw
Permissions:
casinowarps.set - Allows /casinowarps set
casinowarps.reload - Allows /casinowarps reload
Config:
The config just stores the warps - you can change them if you want.
By default, each warp you set will have STONE as its item in the GUI. You can change this in the config.