How do you promote Clearwire, the first 4G wireless broadband network in Portland, Oregon? With cupcakes. And heavy rainstorms of rainbow sprinkles. I want my wi-fi with extra sprinkles, please. The video, after the jump.

Cupcakes In New Wi-Fi Ads

[via Adrants]

Related

Hating on Cupcakes [Serious Eats:New York]
Photo of the Day: Robot Cupcakes
President-Elect Barack Obama in 1,240 Cupcakes