How to make a brain freeze cocktail

Caption for non-PhDs: aren't these sciencepunk brain ice cubes awesome? BRAIN FREEZE!

Caption for PhDs: Still hoping against hope to celebrate your thesis defense in style? Try cocktails with roughly anatomically accurate cortical ice cubes. [Look at it this way: even after six years of beating your bruised cerebrum against intransigent experiments and unsympathetic advisors, you can still out-think and out-publish a chunk of solidified H2O! Take comfort in that, have a stiff drink, be liberal with the bitters - and good luck with those postdoc applications.]

P.S.: They're on sale here, or at Amazon.