Oh, fresh garlic bulbs, not powder. Chop 'em up, stick 'em in a bowl, add boiling water and leave to steep for a few hours, strain into pump spray bottle, dilute a little - you can add a spoonful of vegetable oil or a drop or two of dish-washing soap (preferably potash-based, so it isn't too astringent for the plants) - and voila! You are good to go.

And yeah, I've been jewellery-making for nearly two years now - I find it a nice relaxing hobby. Building up quite a stockpile though, and I can't palm it all off on relatives for birthdays and Christmas! I really need to get organised and find myself a suitable outlet.