For Addie's costume I rounded up a black turtleneck, black velvet skirt, black leggings and shoes. Pretty standard pieces that she can continue to wear through the fall and winter seasons. I picked up some chenille boas at AC Moore to make wrist cuffs and a tail that I"ll be finishing up this weekend. I also grabbed some black and pink felt and sewed a set of cat ears to a black headband following this tutorial. To finish off the look I'll be painting a cute little nose and whiskers on her face.
Ana's costume was even easier, being simply a pink shirt, orange shorts, and yellow socks. I wasn't able to find her a purple backpack, but I don't think she minds. I made her a little bracelet out of yellow pony beads and hot glued on a little green flower from a hair elastic. I also made her a wig using this tutorial. I used black card stock, staples, black felt, and hot glue. It came together very quickly and looks really cute, if I do say so myself. It has the added benefit of keeping her head warm if the night turns out to be a little chilly.
I was able to put both of these costumes together for around $7 total. (Not including the clothes I purchased at consignment, because those can be worn as regular clothing!) I think they're super cute and have so much more appeal than store bought costumes. I'm not opposed to them, they can be very cute and we used them the past 2 years. But their use is very limited and they're expensive (between $15 and $25 each.)
Now I need to put my own costume together. I'm borrowing an idea from my mom (and some clothing items) that I think will be really cute. No spoilers here, I think this one will speak better with pictures. :)