Yup, plain old red kraft paper from Ikea. Cuts like a dream on the Silhouette (had to cut into A4 sheets first). The S & J are A4 size, the rest scaled to look right next to them. The fonts are Narkism & Halohandletter. And yes, it does owe a more than a little inspiration to a PTI sentiment! The snowflakes are basics that came with the Silhouette Studio software.
The whole lot is stuck to the wall using a temporary adhesive. I used the one from Pritt. It proved a little too temporary to begin with (we spent many happy hours searching for a missing letter only to find it safe & sound on the sole of my husband's slipper) but a second application took us right through the festive season last year.
I love this because it was quick, cheap & made a big impact on the porch wall - an area usually bare of anything other than grubby fingerprints.