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It is intended to be used for exporting TVPaint layers to AfterEffects, but I believe it it will work for your purpose (just ignore the json file and use the folders of exported images - print them and peg 'em up. However, if you use the new JSON export mode in Export To > Clip Layer Structure > JSON (.json + images) the resulting image files will be ONLY THE HEADS, so for example if you had a scene with 30 extremes, with some of the drawings exposed on the Timeline on 4's, some on 6's, some on 2's, you will only get the 30 heads, not the other frames between them. This is the way I would usually do it, if I only needed to export a single image of the extremes. Duplicate the layer, select all frames, hit "erase 1 exposure" repeatedly until you only have instances left.
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