Bought domain names with BTC.'
Some guy a while ago bought a pizza for 10,000 BTC( Worth 5million+ now), even though it was worth about $40 then. Lawl.
Who knows if Bitcoin would be where it is today if he had not bought those two pizzas... Butterflies flapping wings!

Still he could of used 5,000 instead of 10,000 for them, average full sized pizza with 2 toppings(at least where I live) costs about $20 or so. But yea, if his buying pizza for that much Bitcoin didn't happen and attract all that attention, Bitcoin might be where it is today.