Diffuser for Canon build-in pop-up flash

This is a diffuser for Canon Kiss digital N build-in pop-up flash, but should work with most DSLR that have build-in pop-up flash. The diffuser plate is generated by "Auto Support" in XYZware (XYZprinting, http://tw.xyzprinting.com/). I think the same function in most FFF/FDM software should work. This work is inspired by Paul's "Lampshade made with XYZware Support" (http://tw.gallery.xyzprinting.com/tw_zh_tw/membergallery/model/201407222117705).