Whilst looking for art projects for my kids to work on this Christmas holidays we came across this salt painting project by MeriCherry. We are planning on giving this one a go without the salt and just doing some tape/paint resistance work.
You can see all the photos and ideas here
This Christmas winter art lesson could also be completed with marker pens to suit your classroom environment. Or for some unsual medium how about stamping? Use cheap Christmas stamps and ink to stamp over the tape.