Bukkit

Would be awesome if you could do something like
on right click on redstone lamp:
  toggle redstone lamp on/off

It would would allow for people to use redstone lamps and remotely toggle them without the use
of redstone. It's basically a replacer for http://dev.bukkit.org/bukkit-plugins/lampcontrol/

You can find something here: http://dev.bukkit.org/bukkit-plugins/skript/forum/help/77684-toggle-redstone-lamp/

@portapipe: Go

Although that could be a patch to the toggle/turn on/turn off %block% effect as it does not work in 1.8 and higher, would be somehow useful and wouldn't require gambiarra (weird wacky workarounds) to make it working.