This blog is about Armor Stands (also known as ArmorStand). Now I'm sure you've seen some youtube videos where there are items sitting flat on a block (the top of it). Well, you probably know the basics of Armor Stands (if not, go check it out on youtube, or the forums). /summon ArmorStand ~ ~.1 ~ {NoGravity:1,Pose:{RightArm:[0F,0F]},ShowArms:1} Well, there's a THIRD number of degrees. {Pose:{RightArm:[0F,0F,0F]}} Change the third number to 90 (or -90) and then click on it with your tool (the list is at the bottom) that you want to "set down". Just saying, you might want to make the armor stand invisible, because if not, then it won't look loike it's being set down on the block. And you can't kill the armor stand when it's invisible, so use this command: /kill @e[type=ArmorStand].  Here's how you make an ITEM, not a tool, sit on a block: /summon ArmorStand ~ ~.7 ~0 {Invisible:1,NoGravity:1,Pose:{RightArm:[-90F,-90F,90F,]},ShowArms:1} .

This is the finished command ,paste this command into a command block: /summon ArmorStand ~ ~.7 ~0 {Invisible:1,NoGravity:1,Pose:{RightArm:[-90F,-90F,90F,]},ShowArms:1,Invisible:1} 
Now Shift-Right Click on the command block with whatever block you want, and activaite the command block (ONLY ONCE).
To place down the item/tool, right click the center of the block
               
Thanks for reading!
        --TheTypingLizard
Tools:
Sword, Axe, Pickaxe, Fishing Rod, Carrot on a Stick, Shovel, Stick, Blaze Rod.
Items: ALL (except for the ones listed above).
Blocks: NONE (unfortunatly).