I saw this in the bibliocraft mod. If you right click the table with an item then the item renders on the table and the same with the shelves. Thanks

That is a nice statement of something you witnessed.  Well written.

Lol delpi...

As for the actual problem, I assume you want to recreate what you just stated. I currently have three of those types of blocks in my mod. The way I do it is create a tile entity, where an item variable is changed when you right click the block. Then the tile entity's renderer renders either that item's model directly, or one of your own models. Have fun with the rest.

I found out how to do it. If anybody has wanted to know how to do it here is a tutorial - http://www.minecraftforum.net/topic/2571061-forge-rendering-an-item-on-your-block/