A catsuit? Totally makeable but not not very comfortable to spend a whole day at school in.
Big hard helmet-type mask? Again, makeable but not practical either. So instead, regular, can-wear-them-all-the-time clothes with just a bit of detail, and some iconic accessories.
A zip-up hoodie with pockets and fuzzy edging (it's the same stuff from Abomasnow two Halloweens ago), is by far the most recognizable thing about Sans' getup. I realize now that it could be longer -- must get longer zipper and replace it for another two or three years' wear!
The hat/mask is a tube of white cotton knit, closed at the top. I had him put it on to mark the placement of eyes and nose. Very thin nylon/cotton knit patches were basted in place, then i cut out the holes with tiny snips before hand-stitching around the edges -- voila, a comfortable, lightweight mask that he can breathe and see out of (in good light!) That's him putting on the rest of the details (Sans' smile especially) with a permanent marker.
She gets a mock-neck t-shirt with some cats'-eye gems, and some leggings, in French terry. Cat ears, made from paper hot-glued to a headband, are all she needs. She decided she needed a glittery lariat.
