the pink frilly thing is my little sister's...
Anyway, for all those wondering how to slice acrylic plastic into armor:
Get a permanent marker. Have your design drawn a few times on paper to get the feel of it...
I say this because no other marker will stick to plastic and stay there after being wiped.
DO NOT do this unless you are sure you know what you're doing...
(I used two colors, one to edit and the other for the design)
Anyway, once you have the design all on there, take a roll of duct or masking tape, and tape EVERYTHING inside the lines you just drew.
Then get a dad, an ultrafine saw (Preferably electric, as it can take hours or LOOONG minutes to saw through by hand, I think)
Start sawing away, or get your dad to if you're too young.
Health problems: You MUST have a mask, kinda like the ones nurses have while they're doing surgery in movies. (MOst plastic doesn't give off a gas when cut, it's just chips fly off, and you may inhale them and...well, who wants chunks of plastic in their lungs anyway?)
Eye protection is unavoidable, unless you want to have bits of plastic sticking there
.
Hope this helped all ye acrylic-plastic users...
(My dad hasn't cut it yet, that part is so far just theory and what the home depot guys told us)