Micro Eureka Construction

Inside of the tower, showing how I achieved the angled top.

 

The stack of brick with either 3 or 5 studs can be used with one dot (1x1 round plate) on either side, By placing two of the 2xn plates on alternate sides and twisting, it allows a tight and clean connection,

 

It the happens that a cheese slope fits in the top cleanly (as can be seen in the insert)

Done