Customizable Hole on a Lithopane

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[>>>] Generating Attributions log:

[0] Thing Title : Car Mount Plate for Cell Phone
[0] Thing URL : http://www.thingiverse.com/thing:30104
[0] Thing Author : MacGyver
[0] Thing Licence : Creative Commons - Attribution

[1] Thing Title : Two Hole Binder Fastener (Prendedor para pasta de dois furos)
[1] Thing URL : http://www.thingiverse.com/thing:87115
[1] Thing Author : humberto
[1] Thing Licence : Creative Commons - Attribut