New heatsink idea.

[zeropointbug]

It definitely looks cool with the circles in there. But also, the circles are the downfall of a good heatsink, no offense.

There will be too much back pressure on the fan, I wouldn't be effective at pushing air throught the channels.

If you want to make your own heatsink, make the fins arranged perpendicular to the center of the fan mount. Or, better yet, make the heatsink taller, and arrange the fins length wise for fanless operation?

Just IMO