Emily Berezin ha sperimentato col polistirolo usato per il packaging alimentare, lo ha inciso, inchiostrato e poi ha stampato. Le sue istruzioni su Craftster (via):

[...] If you want to try it out on your own, it’s super easy.  I just use an x-acto to cut out the shape of what I want to print, and then use the same blade to make linework.  I like to go over the lines again with something pointy; I use an etching tool, but you use any sort of stylus to just widen the lines slightly.  You can even just draw into the styrofoam with a pen, or anything that will indent it — but I like the nice lines you get from using an x-acto.  Printing is exactly the same as a linocut, except that you have to be careful inking multiples, as the edges get squished down a little bit.  This material doesn’t work well if you want a print with a lot of thin ink-colored lines or small shapes, but it’s great for simple, bold shapes with fine, cut linework. [...]