Mini-me got 9781568986883 for his birthday and I'm going to nick some of the ideas out of it. So, today I have planted up 12 sunflower seeds in prep for some guerilla gardening later in the spring. Once they have germinated in their little peat pots, I'll take them down by the river, somewhere I regularly walk my dog, and plant them. It'll be fun walking past them every day to see how they're doing and also imagining other people's surprise and hopefully enjoyment when they see a random patch of up to a dozen sunflowers where you wouldn't expect them. Might even bring you pictures if you're very lucky.