I just had #1 go out and drill some holes in one of my empty 2 liter bottles to see how it works. He brought the drilled bottle back into me, and when I was pleased with the result and asked him to drill the other two he refused point blank.
It seems that drilling holes in a 2 liter bottle, even with a power drill, is a pain in the tuchus. I'll have to hit #2 up to do the other two. Either that or wait until Hubby has a free moment. Of course, I want them done before next January (which is when he should next have some free time), so it look like #2 is the best bet.
I could do it myself, but for some reason whenever I go near power tools, Hubby and the boys always panic.