You should add an effect to golden cookies where it takes away X (5-10 probably) min from the sugar lump wait time. (This would be fairly rare for obvious reasons.)
As well as a potential wrath cookie effect that adds half the amount the positive effect adds to the wait.
(also you could potentially add a dragon aura that gives you a chance to get a sugar lump from clicking GC? -1 level from all buildings?)
A sudden burst of pixel art approaches...