Is this even legal?

Man I love your humorous articulation (even if you're not trying to be funny), but yeah I don't think that's legal if you're not hurting anyone, polluting the ozone or maiming any animals in the process. It sounds like she's wanting to keep you from doing something you like to do, and according to your previous rant, possibly because she would rather you be doing something else than what you choose to do. It's ridiculous of the so-called "reasonable explanations" people come up with that prohibit you from doing something, when they are pretty much trying to control your life choices and trying to make you do what they want to you to do.
I'm not telling you defy your parents, but if they really don't observe, check or monitor your result creations as to how it was made and what was used to make it, you could probably get away with hiding your tools. Not everybody, besides teenagers, let their parents know what they are up to. It's not like you're sneaking out to see some boy or something, now that's a no no!! LOL

have you try talking about it, or using other products, like instead or a razor, xacto knife?

I don't know why she took the lighters, maybe she thinks you are smoking?

or maybe doing this outside so you don't damage anything? when I use bleach I use a tarp

Well, I would like to think that you are using some type of covering for your work surfaces when working with things like the paint and bleach or even the knife (razor or x-acto) and you're especially careful with those so that you don't cut yourself. Lighters and the fluid, well don't think she thinks you are smoking, but fear of burning down the house. Still, you are old enough to know how to be careful with those things, I still think it's an excuse, but that's just me, of course I can't figure out what you could be using the axe for.

Well....if you still live with her and (are you underage?) then yes, I'm pretty sure it's legal. I think if falls under the "my house, my rules" thing. lol

I'm thinking how I'd feel if my child grew up and his art destroyed the things that I worked hard to provide. (house, tables, floors, carpet...whatever)

If you're being respectful and not damaging anything other than your art, then that should be ok. But Think how you'd feel if your mom came in, took your favorite shirt and sewed bows and sequins to it and said it was art.

I guess the rule of thumb should be, if you bought it with money you worked for, and if the things you destroy are also paid for with your own money, then no, she shouldn't be able to stop you as long as you are being safe and not causing any damage to anything else. (INCLUDING YOURSELF!!) lol

lighter fluid, razor blades, axes ,bleach sorry these are just things that scare us moms. there are definite dangers, she might really be scared you are going to hurt someone namely you. i know it seams crappy but she is probably trying to protect u and it also depends on what your doing with these things. maybe you could ask her to approve a few of your destructive projects like maybe can i bleach this mom or maybe ask her to supervise the usage of the lighter fluid once she sees you are capable of using things like this she may be more inclined to let you on you own.sad to say but i never owned a bottle of lighter fluid until i lived on my own.

So we've made an arrangement. I am underage but I buy all my own supplies, it's just what those supplies have done to the house. This whole search and seizure business happened after I started painting a design on my wall with black paint. (Totally had permission for this) But I tripped over the can of paint and didn't put a tarp down... SO maybe that was my fault.

No matter how rational my mom is I'm not going to listen to her out of principal, but I'll listen to the moms who replied, change my destructive ways, and let her think that she's the one I'm listening to.

She returned the paint.

@Creative Minds: The axe is rarely used but when it is used I cut up wood. No out of the ordinary task for an axe. Sometimes I feel like what my mom does is just some kind of big conspiracy to get me to fall in line with everything she wants but I think this time she may just in want me to stop. (Though it pains me to admit.) I lit a fire in the house last month and the smoke detectors went off. I'm not the best kid.

Alrighty then! That's so not good, so needless to say you would mos def need to be more careful with things like that (if you ever get it back) because that definitely gives cause for your mom's confiscation. And you say "you're not the best kid" like you did that on purpose which I'm sure you didn't, you just weren't careful. And about the axe, I get cutting up wood with it but was mostly curious as to what you would craft out of cut wood like that. I've never worked with wood in that way besides bought pieces of wood to use my wood burner, but yeah ok. In any case, hope your arrangement with you mom works out and whatever it is, it doesn't too much limit your creativity if at all.