Macro photography is one of my favorite hobbies. I love highlighting the interesting textures and details in everyday things that most people never notice; using a very shallow depth of field allows me to blur away the chaos of everything else. It gives me a lot of control over my art and what the audience picks out because little else is there to distract you from what I want you to see.
Dandelions are usually thought of as weeds, but as you can see in the one above, they have a very interesting combination of textures. You can see the pappus of fine white hairs at the end of the long, slender beak attached to each light brown achene, with all its miniscule little grooves and ridges, and the pale little nubs left behind by the ones that have fallen off the clock. If you click on the photo, you'll get a much larger version.
What's also great about macro photography is that you don't need fancy equipment. Sure, having a fancy lens would make some things easier, but I took the photo above with a kit lens and you can even use a point and shoot. It takes a bit more skill, but developing that skill is part of the fun. Many cameras have a macro mode that looks like a tulip; if you've never done this before, you can start by playing with that. If you want more control and like the shallow depth of field like I do, use a low f-number; higher f-numbers mean smaller apertures, which gives you less blur. Low f-numbers also come with faster shutter speeds, which is nice for dandelions waving in the breeze or those naughty little bugs that just won't stop moving.