A simple little 3d print I made to make to create a bat signal. Kinda crappy as it doesn't work at most distances but if you hold it right it makes a cool effect(pictured above). The flashlight it fits on is pretty cheap but you should be able to scale it to fit most flashlights. The flashlight I used is: [https://www.amazon.com/CSNDICE-Rechargeable-Searchlight-High-power-flashlights/dp/B074P5N3RG/ref=sr_1_60?crid=3CE0VB44XLLKF&keywords=rechargeable+flashlight&qid=1682083535&sprefix=rechargable+flashlight%2Caps%2C65&sr=8-60](https://www.amazon.com/CSNDICE-Rechargeable-Searchlight-High-power-flashlights/dp/B074P5N3RG/ref=sr_1_60?crid=3CE0VB44XLLKF&keywords=rechargeable+flashlight&qid=1682083535&sprefix=rechargable+flashlight%2Caps%2C65&sr=8-60)