Combined aspects from KurtLindner's and odivelas' Things.
I included an area in the back to put spare nozzles and the foam piece for the extruder cleaning needle.
I added two X-Acto knife, pencil, or pen holders on the top.
Feel free to adjust this thing as necessary for your own tools.
EDIT: Mark 2 of the tool holder has been added. It allows for 9 nozzles, a pair of tweezers, and fixes an issue were the allen wrenches would hit the extruder gantry if it went high enough.
Also added an attachment for those of you who got a different style of scraper; one that has a flat edge, rather than rounded. It's called 'Flat Scraper Fix'
EDIT 2: Added an insert for the original design so you can put foam into the lower compartment and store the needle on its side.
EDIT 3: Added an additional version of the Mark 2 tool holder that has 2 more cutter rests/hooks. I also added a cutter rest/hook by itself so it can be printed separately and then superglued to any of the holders.