BatSignal
thingiverse
This bat signal is based on "Bat signal" by lukask. Its a smaller size, but includes a cover to house the laser, and a switch, and a modified base for a USB power cable. Also, a tweak to bat symbol on the lens.
Download Model from thingiverse
With this file you will be able to print BatSignal 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 BatSignal.