http://www.liquidfence.com/automatic-plant-waterer.html This looks like a very ineffective way to water for a couple weeks in flowering, but might work for young vegging plants. I'm not sure how much water a young vegging plant would need for two weeks, but 32 oz seems like it wouldn't be enough. Has anyone had any experience with something like this?
I have a green genius, its under $50 and seems to be working very well. This is the only link I could find quick, but if you search around you'll find it for less. http://www.hhydro.com/cgi-bin/hhydro/HH00818.html