Laser etching aluminum business cards

I ordered a variety pack of aluminum business cards to see how well the Genmitsu LE5040 with its 5.5watt laser could etch on them. There are 5 colors: black, gold, purple, blue, silver. With a total of 150 blank cards, I am going to have fun seeing what I can etch on them.
150 Pieces Aluminum Business Cards Blanks - amzn.to/3Sf9F5i
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