Home Clowning.. Err.. Cloning.

[stinkybudz]

Aspirin- I can't remember at the moment if that's a way to make chemical herms, but did you know that steeping willow twigs (yup! where aspirin comes from!) in hot water and then cooling that water will give you a rooting liquid? It is not as strong as commercial chemical rooting hormone, but if you are a pure-organic grower, it is a fine option for a more natural rooting agent.
Do not worry about salicylic acid being taken up and stored in the buds. Not that I would spray aspirin on plants in flower, but it is a very very safe chemical. I am not certain why you would worry about finding it in urine either, since it's perfectly legal, and an ingredient in many painkillers, anti-inflammatories, and blood thinners.

Any type of willow.
Steeping= allow to sit in very hot, but not boiling, water for some time to extract the hormones in the young twigs.

those are stinkys ways of the rooting hormone, took me a while to find the thread but thank god for search engine