Bitsignal (Bitcoin flashlight signal, like Batsignal but for Bitcoin)
thingiverse
Put this at the end of your flashlight and represent Bitcoin anywhere you go. More noticeable than any poster or flag. Works with any flashlight that has a circular end piece. Just scale the inner circle's diameter to 0.5 mm larger than the diameter of your flashlight. Print in black. The darker the better. I used white filament at first, but then spray-painted it black for improved performance. If possible, use black filament from the start. I'm also selling this with a flashlight that fits the Bitsignal by default on Etsy.
With this file you will be able to print Bitsignal (Bitcoin flashlight signal, like Batsignal but for Bitcoin) with your 3D printer. Click on the button and save the file on your computer to work, edit or customize your design. You can also find more 3D designs for printers on Bitsignal (Bitcoin flashlight signal, like Batsignal but for Bitcoin).