"MKDD"
I really hate when people name brick categories after themselves. Just put them in special.
This; I'd seriously prefer almost all custom bricks to be put in special rather than a dedicated category which is really no help whatsoever. Also, if you have too many brick categories, you have to tab to even use the bricks instead of just clicking on special and scrolling down.
OT: The bricks look pretty good. Is the fan animated, because if not, you could make the fan like a door so that it can be toggleable.