Often I (and others) find that they need to place some blocks in a far away and rather inaccessible place. The solution? The Building Laser!
Crafted the same as a mining laser, with the crystal swapped for a lapotron (transporting matter across the room still takes a lot of power!) this tool would allow you to place blocks at extreme range!
Upon rightclicking, it would look through the hotbar for a placable block/item, and place it where you are pointing! (limited range ofc, though should still be pretty far)
Crafting:simple, just a lapotron
Sprite:simple, just make it blue
Implementation:relatively easy
Awesomeness: 1337gibbl HAYO!