Am curious if anyone has tried adapting a fuel line chiller
for CPU water cooling? It seems to me that filling this can
with LN2 would give your water cooling an extra boost.
These devices are designed so that a soda can filled with
water and frozen overnight will fit perfectly inside. I am
thinking that rather then a soda can, to fill the chiller can
with LN2 would work great for water cooling. Any thoughts?

The Cool Can can be found for sale here.
http://www.speedmaxperformance.com/