Marketing can be e-x-p-e-n-s-i-v-e... Luckily, there's always the guerrilla marketing alternative. For those who don't know, it's a marketing strategy that focuses on imagination, original ideas, and low or no expenses at all. So, how does it work? Basically, it takes consumers by surprise, by popping up at unexpected places, making a lasting impression. Dying to see what they look like? Check out this list of the coolest guerrilla advertisements compiled by Bored Panda!

Have you seen any eye-catching guerrilla advertisements yourselves lately? Add your pics to the list below and don't forget to vote!