I know you can purchase a “Bad Mother F*cker” wallet online from different vendors but honestly they don't look nice and there is something cool about taking your wallet and telling people you customized it.
Step 1: Leather Wallet and Font
Second, you will need to download the Bad Mofo Font. You can download it from Fontsy but I also included it directly on this instructable because you never know if people will start charging for the fonts in the future.
Step 2: Design your wallet
Export or convert your file as a bitmap and then select Print. Depending on the Laser Cutter you will need to set the power and speed of the laser. You will also need to focus the lens before you print.