As we all know, a lot of businesses underpay their employees as much as they overcharge their customers. So, to make up for these inhumanly low wages, clever employees sometimes use funny tip jars to squeeze out those extra change out of people. This funny yet brilliant stratagem not only provide the employees a creative outlet, it also brings a smile to customers’ faces. It’s a win-win situation, really. Anyway, for your enjoyment, here are 30 tip jars that are too funny to resist.