This block is very simple, just a copper slab and a pipe with the bottom half filed away:
VGA block, see farther down for internal design
CPU block, similar internal design as the vga block
Inside the VGA block
The block is CNC'ed (I have ten more at home, the time per piece was only 15 minutes so I made some during some free time at school.
The VGA block is quite restrictive, mainly because of the built in 90degree turns.