This is my first public plugin, it has four commands and allows you to find the item id for any block.
Features
Allows you to start and stop a listener that tells you the item id for any block you left lick.
Commands
/getidstart -starts your listener and makes your left click display itemID in chat (good for doing many ID's in a row)
/getidstop -halts your listener and halts chat output
/getidsingle -starts your listener and gives you 1 click and 1 block ID then shuts off your listener automatically
/getidheld -gives you the item ID for the block in your hand
Permissions
Everyone should have the right to use the commands
Configuration
None
Notes
Not quite sure how well this will work items that are not blocks. I hope this plugin is helpful.
Source Code
https://drive.google.com/folderview?id=0B0IHGD3WExDqRlZ4cFpTcEhiYkk&usp=sharing