Custom gobos can be pricey.
For a decent one, expect to pay minimum $100 just for the first cookie (should include the setup fee).
Just be sure you have the right size made for the machine.
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"Nature has constituted utility to man the standard and test of virtue. Men living in different countries, under different circumstances, different habits and regimens, may have different utilities; the same act, therefore, may be useful and consequently virtuous in one country which is injurious and vicious in another differently circumstanced" - Thomas Jefferson, moral relativist